Home / 153,835.69-212,312.58-89,291.04

Finding the Fourth Proportional to 153,835.69, 212,312.58 and 89,291.04

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Solution

The fourth proportional to 153,835.69, 212,312.58 and 89,291.04 is: 123,232.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,835.69 : 212,312.58 = 89,291.04 : x
  2. Step 2: Convert to fraction form
    153,835.69/212,312.58 = 89,291.04/x
  3. Step 3: Cross multiply
    153,835.69x = 212,312.58 × 89,291.04
  4. Step 4: Simplify right side
    153,835.69x = 18,957,610,626.83
  5. Step 5: Solve for x
    x = 18,957,610,626.83/153,835.69
  6. Step 6: Final answer
    x = 123,232.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.