Home / 129,162.84-193,743.02-76,534.44

Finding the Fourth Proportional to 129,162.84, 193,743.02 and 76,534.44

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Solution

The fourth proportional to 129,162.84, 193,743.02 and 76,534.44 is: 114,800.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,162.84 : 193,743.02 = 76,534.44 : x
  2. Step 2: Convert to fraction form
    129,162.84/193,743.02 = 76,534.44/x
  3. Step 3: Cross multiply
    129,162.84x = 193,743.02 × 76,534.44
  4. Step 4: Simplify right side
    129,162.84x = 14,828,013,539.61
  5. Step 5: Solve for x
    x = 14,828,013,539.61/129,162.84
  6. Step 6: Final answer
    x = 114,800.93

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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.