Home / 123,300.43-170,154.59-66,711.80

Finding the Fourth Proportional to 123,300.43, 170,154.59 and 66,711.80

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Solution

The fourth proportional to 123,300.43, 170,154.59 and 66,711.80 is: 92,062.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,300.43 : 170,154.59 = 66,711.80 : x
  2. Step 2: Convert to fraction form
    123,300.43/170,154.59 = 66,711.80/x
  3. Step 3: Cross multiply
    123,300.43x = 170,154.59 × 66,711.80
  4. Step 4: Simplify right side
    123,300.43x = 11,351,319,068.99
  5. Step 5: Solve for x
    x = 11,351,319,068.99/123,300.43
  6. Step 6: Final answer
    x = 92,062.28

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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.