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Finding the Fourth Proportional to 122,800.50, 169,465.50 and 69,085.08

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Solution

The fourth proportional to 122,800.50, 169,465.50 and 69,085.08 is: 95,337.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,800.50 : 169,465.50 = 69,085.08 : x
  2. Step 2: Convert to fraction form
    122,800.50/169,465.50 = 69,085.08/x
  3. Step 3: Cross multiply
    122,800.50x = 169,465.50 × 69,085.08
  4. Step 4: Simplify right side
    122,800.50x = 11,707,537,624.74
  5. Step 5: Solve for x
    x = 11,707,537,624.74/122,800.50
  6. Step 6: Final answer
    x = 95,337.87

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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.