Home / 112,988.16-155,898.54-65,231.10

Finding the Fourth Proportional to 112,988.16, 155,898.54 and 65,231.10

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Solution

The fourth proportional to 112,988.16, 155,898.54 and 65,231.10 is: 90,004.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,988.16 : 155,898.54 = 65,231.10 : x
  2. Step 2: Convert to fraction form
    112,988.16/155,898.54 = 65,231.10/x
  3. Step 3: Cross multiply
    112,988.16x = 155,898.54 × 65,231.10
  4. Step 4: Simplify right side
    112,988.16x = 10,169,433,252.59
  5. Step 5: Solve for x
    x = 10,169,433,252.59/112,988.16
  6. Step 6: Final answer
    x = 90,004.42

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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.