Home / 112,103,681.90-168,155,522.85-89,428,865.90

Finding the Fourth Proportional to 112,103,681.90, 168,155,522.85 and 89,428,865.90

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Solution

The fourth proportional to 112,103,681.90, 168,155,522.85 and 89,428,865.90 is: 134,143,298.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,103,681.90 : 168,155,522.85 = 89,428,865.90 : x
  2. Step 2: Convert to fraction form
    112,103,681.90/168,155,522.85 = 89,428,865.90/x
  3. Step 3: Cross multiply
    112,103,681.90x = 168,155,522.85 × 89,428,865.90
  4. Step 4: Simplify right side
    112,103,681.90x = 15,037,957,703,297,036
  5. Step 5: Solve for x
    x = 15,037,957,703,297,036/112,103,681.90
  6. Step 6: Final answer
    x = 134,143,298.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.