Home / 123,501.66-170,430.05-69,785.54

Finding the Fourth Proportional to 123,501.66, 170,430.05 and 69,785.54

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Solution

The fourth proportional to 123,501.66, 170,430.05 and 69,785.54 is: 96,302.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,501.66 : 170,430.05 = 69,785.54 : x
  2. Step 2: Convert to fraction form
    123,501.66/170,430.05 = 69,785.54/x
  3. Step 3: Cross multiply
    123,501.66x = 170,430.05 × 69,785.54
  4. Step 4: Simplify right side
    123,501.66x = 11,893,553,071.48
  5. Step 5: Solve for x
    x = 11,893,553,071.48/123,501.66
  6. Step 6: Final answer
    x = 96,302.78

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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.