Home / 122,861.40-169,554.19-69,149.90

Finding the Fourth Proportional to 122,861.40, 169,554.19 and 69,149.90

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Solution

The fourth proportional to 122,861.40, 169,554.19 and 69,149.90 is: 95,429.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,861.40 : 169,554.19 = 69,149.90 : x
  2. Step 2: Convert to fraction form
    122,861.40/169,554.19 = 69,149.90/x
  3. Step 3: Cross multiply
    122,861.40x = 169,554.19 × 69,149.90
  4. Step 4: Simplify right side
    122,861.40x = 11,724,655,283.08
  5. Step 5: Solve for x
    x = 11,724,655,283.08/122,861.40
  6. Step 6: Final answer
    x = 95,429.93

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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.