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Finding the Fourth Proportional to 122,502.32, 168,800.40 and 93,820.40

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Solution

The fourth proportional to 122,502.32, 168,800.40 and 93,820.40 is: 129,278.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,502.32 : 168,800.40 = 93,820.40 : x
  2. Step 2: Convert to fraction form
    122,502.32/168,800.40 = 93,820.40/x
  3. Step 3: Cross multiply
    122,502.32x = 168,800.40 × 93,820.40
  4. Step 4: Simplify right side
    122,502.32x = 15,836,921,048.16
  5. Step 5: Solve for x
    x = 15,836,921,048.16/122,502.32
  6. Step 6: Final answer
    x = 129,278.54

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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.