Home / 150,572.16-207,792-86,915.52

Finding the Fourth Proportional to 150,572.16, 207,792 and 86,915.52

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Solution

The fourth proportional to 150,572.16, 207,792 and 86,915.52 is: 119,944.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,572.16 : 207,792 = 86,915.52 : x
  2. Step 2: Convert to fraction form
    150,572.16/207,792 = 86,915.52/x
  3. Step 3: Cross multiply
    150,572.16x = 207,792 × 86,915.52
  4. Step 4: Simplify right side
    150,572.16x = 18,060,349,731.84
  5. Step 5: Solve for x
    x = 18,060,349,731.84/150,572.16
  6. Step 6: Final answer
    x = 119,944.81

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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.