Home / 123,402.83-170,277.53-69,686.78

Finding the Fourth Proportional to 123,402.83, 170,277.53 and 69,686.78

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Solution

The fourth proportional to 123,402.83, 170,277.53 and 69,686.78 is: 96,157.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,402.83 : 170,277.53 = 69,686.78 : x
  2. Step 2: Convert to fraction form
    123,402.83/170,277.53 = 69,686.78/x
  3. Step 3: Cross multiply
    123,402.83x = 170,277.53 × 69,686.78
  4. Step 4: Simplify right side
    123,402.83x = 11,866,091,572.23
  5. Step 5: Solve for x
    x = 11,866,091,572.23/123,402.83
  6. Step 6: Final answer
    x = 96,157.37

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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.