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Finding the Fourth Proportional to 129,962.70, 195,030.45 and 73,802.70

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Solution

The fourth proportional to 129,962.70, 195,030.45 and 73,802.70 is: 110,753.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,962.70 : 195,030.45 = 73,802.70 : x
  2. Step 2: Convert to fraction form
    129,962.70/195,030.45 = 73,802.70/x
  3. Step 3: Cross multiply
    129,962.70x = 195,030.45 × 73,802.70
  4. Step 4: Simplify right side
    129,962.70x = 14,393,773,792.22
  5. Step 5: Solve for x
    x = 14,393,773,792.22/129,962.70
  6. Step 6: Final answer
    x = 110,753.11

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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.