Home / 123,588.77-170,545.94-69,870.58

Finding the Fourth Proportional to 123,588.77, 170,545.94 and 69,870.58

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Solution

The fourth proportional to 123,588.77, 170,545.94 and 69,870.58 is: 96,417.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,588.77 : 170,545.94 = 69,870.58 : x
  2. Step 2: Convert to fraction form
    123,588.77/170,545.94 = 69,870.58/x
  3. Step 3: Cross multiply
    123,588.77x = 170,545.94 × 69,870.58
  4. Step 4: Simplify right side
    123,588.77x = 11,916,142,542.36
  5. Step 5: Solve for x
    x = 11,916,142,542.36/123,588.77
  6. Step 6: Final answer
    x = 96,417.68

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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.