Home / 97,686.30-146,140.65-84,683.10

Finding the Fourth Proportional to 97,686.30, 146,140.65 and 84,683.10

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Solution

The fourth proportional to 97,686.30, 146,140.65 and 84,683.10 is: 126,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,686.30 : 146,140.65 = 84,683.10 : x
  2. Step 2: Convert to fraction form
    97,686.30/146,140.65 = 84,683.10/x
  3. Step 3: Cross multiply
    97,686.30x = 146,140.65 × 84,683.10
  4. Step 4: Simplify right side
    97,686.30x = 12,375,643,278.02
  5. Step 5: Solve for x
    x = 12,375,643,278.02/97,686.30
  6. Step 6: Final answer
    x = 126,687.60

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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.