Home / 122,126.40-168,545.12-68,410.56

Finding the Fourth Proportional to 122,126.40, 168,545.12 and 68,410.56

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Solution

The fourth proportional to 122,126.40, 168,545.12 and 68,410.56 is: 94,412.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,126.40 : 168,545.12 = 68,410.56 : x
  2. Step 2: Convert to fraction form
    122,126.40/168,545.12 = 68,410.56/x
  3. Step 3: Cross multiply
    122,126.40x = 168,545.12 × 68,410.56
  4. Step 4: Simplify right side
    122,126.40x = 11,530,266,044.47
  5. Step 5: Solve for x
    x = 11,530,266,044.47/122,126.40
  6. Step 6: Final answer
    x = 94,412.56

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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.