Home / 123,495.32-170,424.25-66,906.70

Finding the Fourth Proportional to 123,495.32, 170,424.25 and 66,906.70

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Solution

The fourth proportional to 123,495.32, 170,424.25 and 66,906.70 is: 92,331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,495.32 : 170,424.25 = 66,906.70 : x
  2. Step 2: Convert to fraction form
    123,495.32/170,424.25 = 66,906.70/x
  3. Step 3: Cross multiply
    123,495.32x = 170,424.25 × 66,906.70
  4. Step 4: Simplify right side
    123,495.32x = 11,402,523,574.15
  5. Step 5: Solve for x
    x = 11,402,523,574.15/123,495.32
  6. Step 6: Final answer
    x = 92,331.62

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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.