Home / 123,246.77-170,080.56-66,658.15

Finding the Fourth Proportional to 123,246.77, 170,080.56 and 66,658.15

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Solution

The fourth proportional to 123,246.77, 170,080.56 and 66,658.15 is: 91,988.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,246.77 : 170,080.56 = 66,658.15 : x
  2. Step 2: Convert to fraction form
    123,246.77/170,080.56 = 66,658.15/x
  3. Step 3: Cross multiply
    123,246.77x = 170,080.56 × 66,658.15
  4. Step 4: Simplify right side
    123,246.77x = 11,337,255,214.81
  5. Step 5: Solve for x
    x = 11,337,255,214.81/123,246.77
  6. Step 6: Final answer
    x = 91,988.25

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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.