Home / 131,799.60-197,784.45-72,677.70

Finding the Fourth Proportional to 131,799.60, 197,784.45 and 72,677.70

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Solution

The fourth proportional to 131,799.60, 197,784.45 and 72,677.70 is: 109,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,799.60 : 197,784.45 = 72,677.70 : x
  2. Step 2: Convert to fraction form
    131,799.60/197,784.45 = 72,677.70/x
  3. Step 3: Cross multiply
    131,799.60x = 197,784.45 × 72,677.70
  4. Step 4: Simplify right side
    131,799.60x = 14,374,518,921.77
  5. Step 5: Solve for x
    x = 14,374,518,921.77/131,799.60
  6. Step 6: Final answer
    x = 109,063.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.