Home / 100,259.12-138,344.45-59,958.18

Finding the Fourth Proportional to 100,259.12, 138,344.45 and 59,958.18

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Solution

The fourth proportional to 100,259.12, 138,344.45 and 59,958.18 is: 82,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,259.12 : 138,344.45 = 59,958.18 : x
  2. Step 2: Convert to fraction form
    100,259.12/138,344.45 = 59,958.18/x
  3. Step 3: Cross multiply
    100,259.12x = 138,344.45 × 59,958.18
  4. Step 4: Simplify right side
    100,259.12x = 8,294,881,585.00
  5. Step 5: Solve for x
    x = 8,294,881,585.00/100,259.12
  6. Step 6: Final answer
    x = 82,734.43

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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.