Home / 129,717.95-194,649.83-70,557.76

Finding the Fourth Proportional to 129,717.95, 194,649.83 and 70,557.76

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Solution

The fourth proportional to 129,717.95, 194,649.83 and 70,557.76 is: 105,876.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,717.95 : 194,649.83 = 70,557.76 : x
  2. Step 2: Convert to fraction form
    129,717.95/194,649.83 = 70,557.76/x
  3. Step 3: Cross multiply
    129,717.95x = 194,649.83 × 70,557.76
  4. Step 4: Simplify right side
    129,717.95x = 13,734,054,663.14
  5. Step 5: Solve for x
    x = 13,734,054,663.14/129,717.95
  6. Step 6: Final answer
    x = 105,876.29

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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.