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Finding the Fourth Proportional to 88,686.10, 133,029.15 and 82,810.90

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Solution

The fourth proportional to 88,686.10, 133,029.15 and 82,810.90 is: 124,216.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,686.10 : 133,029.15 = 82,810.90 : x
  2. Step 2: Convert to fraction form
    88,686.10/133,029.15 = 82,810.90/x
  3. Step 3: Cross multiply
    88,686.10x = 133,029.15 × 82,810.90
  4. Step 4: Simplify right side
    88,686.10x = 11,016,263,637.74
  5. Step 5: Solve for x
    x = 11,016,263,637.74/88,686.10
  6. Step 6: Final answer
    x = 124,216.35

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1.5x scale

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.