Home / 140,545.14-193,885.29-86,810.82

Finding the Fourth Proportional to 140,545.14, 193,885.29 and 86,810.82

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Solution

The fourth proportional to 140,545.14, 193,885.29 and 86,810.82 is: 119,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,545.14 : 193,885.29 = 86,810.82 : x
  2. Step 2: Convert to fraction form
    140,545.14/193,885.29 = 86,810.82/x
  3. Step 3: Cross multiply
    140,545.14x = 193,885.29 × 86,810.82
  4. Step 4: Simplify right side
    140,545.14x = 16,831,341,010.84
  5. Step 5: Solve for x
    x = 16,831,341,010.84/140,545.14
  6. Step 6: Final answer
    x = 119,757.55

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1.5x scale

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.