Home / 129,963.61-194,501.86-108,927.40

Finding the Fourth Proportional to 129,963.61, 194,501.86 and 108,927.40

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Solution

The fourth proportional to 129,963.61, 194,501.86 and 108,927.40 is: 163,019.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,963.61 : 194,501.86 = 108,927.40 : x
  2. Step 2: Convert to fraction form
    129,963.61/194,501.86 = 108,927.40/x
  3. Step 3: Cross multiply
    129,963.61x = 194,501.86 × 108,927.40
  4. Step 4: Simplify right side
    129,963.61x = 21,186,581,904.96
  5. Step 5: Solve for x
    x = 21,186,581,904.96/129,963.61
  6. Step 6: Final answer
    x = 163,019.34

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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.