Home / 129,012.98-193,594.24-54,126.50

Finding the Fourth Proportional to 129,012.98, 193,594.24 and 54,126.50

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Solution

The fourth proportional to 129,012.98, 193,594.24 and 54,126.50 is: 81,221.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,012.98 : 193,594.24 = 54,126.50 : x
  2. Step 2: Convert to fraction form
    129,012.98/193,594.24 = 54,126.50/x
  3. Step 3: Cross multiply
    129,012.98x = 193,594.24 × 54,126.50
  4. Step 4: Simplify right side
    129,012.98x = 10,478,578,631.36
  5. Step 5: Solve for x
    x = 10,478,578,631.36/129,012.98
  6. Step 6: Final answer
    x = 81,221.12

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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.