Home / 123,303.77-170,159.19-66,715.15

Finding the Fourth Proportional to 123,303.77, 170,159.19 and 66,715.15

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Solution

The fourth proportional to 123,303.77, 170,159.19 and 66,715.15 is: 92,066.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,303.77 : 170,159.19 = 66,715.15 : x
  2. Step 2: Convert to fraction form
    123,303.77/170,159.19 = 66,715.15/x
  3. Step 3: Cross multiply
    123,303.77x = 170,159.19 × 66,715.15
  4. Step 4: Simplify right side
    123,303.77x = 11,352,195,884.73
  5. Step 5: Solve for x
    x = 11,352,195,884.73/123,303.77
  6. Step 6: Final answer
    x = 92,066.90

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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.