Home / 89,724.40-134,435.40-70,932.40

Finding the Fourth Proportional to 89,724.40, 134,435.40 and 70,932.40

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Solution

The fourth proportional to 89,724.40, 134,435.40 and 70,932.40 is: 106,279.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,724.40 : 134,435.40 = 70,932.40 : x
  2. Step 2: Convert to fraction form
    89,724.40/134,435.40 = 70,932.40/x
  3. Step 3: Cross multiply
    89,724.40x = 134,435.40 × 70,932.40
  4. Step 4: Simplify right side
    89,724.40x = 9,535,825,566.96
  5. Step 5: Solve for x
    x = 9,535,825,566.96/89,724.40
  6. Step 6: Final answer
    x = 106,279.07

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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.