Home / 150,915.71-208,171.05-89,620.25

Finding the Fourth Proportional to 150,915.71, 208,171.05 and 89,620.25

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Solution

The fourth proportional to 150,915.71, 208,171.05 and 89,620.25 is: 123,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,915.71 : 208,171.05 = 89,620.25 : x
  2. Step 2: Convert to fraction form
    150,915.71/208,171.05 = 89,620.25/x
  3. Step 3: Cross multiply
    150,915.71x = 208,171.05 × 89,620.25
  4. Step 4: Simplify right side
    150,915.71x = 18,656,340,502.91
  5. Step 5: Solve for x
    x = 18,656,340,502.91/150,915.71
  6. Step 6: Final answer
    x = 123,620.93

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1.5x scale

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.