Home / 123,585.52-170,547.60-66,996.76

Finding the Fourth Proportional to 123,585.52, 170,547.60 and 66,996.76

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Solution

The fourth proportional to 123,585.52, 170,547.60 and 66,996.76 is: 92,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,585.52 : 170,547.60 = 66,996.76 : x
  2. Step 2: Convert to fraction form
    123,585.52/170,547.60 = 66,996.76/x
  3. Step 3: Cross multiply
    123,585.52x = 170,547.60 × 66,996.76
  4. Step 4: Simplify right side
    123,585.52x = 11,426,136,625.78
  5. Step 5: Solve for x
    x = 11,426,136,625.78/123,585.52
  6. Step 6: Final answer
    x = 92,455.30

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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.