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Finding the Fourth Proportional to 131,463.84, 197,154 and 42,696.84

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Solution

The fourth proportional to 131,463.84, 197,154 and 42,696.84 is: 64,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,463.84 : 197,154 = 42,696.84 : x
  2. Step 2: Convert to fraction form
    131,463.84/197,154 = 42,696.84/x
  3. Step 3: Cross multiply
    131,463.84x = 197,154 × 42,696.84
  4. Step 4: Simplify right side
    131,463.84x = 8,417,852,793.36
  5. Step 5: Solve for x
    x = 8,417,852,793.36/131,463.84
  6. Step 6: Final answer
    x = 64,031.70

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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.