Home / 123,501.52-170,429.88-69,785.38

Finding the Fourth Proportional to 123,501.52, 170,429.88 and 69,785.38

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Solution

The fourth proportional to 123,501.52, 170,429.88 and 69,785.38 is: 96,302.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,501.52 : 170,429.88 = 69,785.38 : x
  2. Step 2: Convert to fraction form
    123,501.52/170,429.88 = 69,785.38/x
  3. Step 3: Cross multiply
    123,501.52x = 170,429.88 × 69,785.38
  4. Step 4: Simplify right side
    123,501.52x = 11,893,513,590.23
  5. Step 5: Solve for x
    x = 11,893,513,590.23/123,501.52
  6. Step 6: Final answer
    x = 96,302.57

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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.