Home / 140,044.04-193,264.08-76,387.76

Finding the Fourth Proportional to 140,044.04, 193,264.08 and 76,387.76

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Solution

The fourth proportional to 140,044.04, 193,264.08 and 76,387.76 is: 105,416.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,044.04 : 193,264.08 = 76,387.76 : x
  2. Step 2: Convert to fraction form
    140,044.04/193,264.08 = 76,387.76/x
  3. Step 3: Cross multiply
    140,044.04x = 193,264.08 × 76,387.76
  4. Step 4: Simplify right side
    140,044.04x = 14,763,010,159.66
  5. Step 5: Solve for x
    x = 14,763,010,159.66/140,044.04
  6. Step 6: Final answer
    x = 105,416.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.