Home / 140,348.17-193,680.03-76,686.49

Finding the Fourth Proportional to 140,348.17, 193,680.03 and 76,686.49

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Solution

The fourth proportional to 140,348.17, 193,680.03 and 76,686.49 is: 105,827.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,348.17 : 193,680.03 = 76,686.49 : x
  2. Step 2: Convert to fraction form
    140,348.17/193,680.03 = 76,686.49/x
  3. Step 3: Cross multiply
    140,348.17x = 193,680.03 × 76,686.49
  4. Step 4: Simplify right side
    140,348.17x = 14,852,641,683.79
  5. Step 5: Solve for x
    x = 14,852,641,683.79/140,348.17
  6. Step 6: Final answer
    x = 105,827.11

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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.