Home / 122,152.86-182,258.10-107,193.78

Finding the Fourth Proportional to 122,152.86, 182,258.10 and 107,193.78

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Solution

The fourth proportional to 122,152.86, 182,258.10 and 107,193.78 is: 159,938.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,152.86 : 182,258.10 = 107,193.78 : x
  2. Step 2: Convert to fraction form
    122,152.86/182,258.10 = 107,193.78/x
  3. Step 3: Cross multiply
    122,152.86x = 182,258.10 × 107,193.78
  4. Step 4: Simplify right side
    122,152.86x = 19,536,934,674.62
  5. Step 5: Solve for x
    x = 19,536,934,674.62/122,152.86
  6. Step 6: Final answer
    x = 159,938.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.