Home / 147,785.60-221,678.40-101,129.60

Finding the Fourth Proportional to 147,785.60, 221,678.40 and 101,129.60

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Solution

The fourth proportional to 147,785.60, 221,678.40 and 101,129.60 is: 151,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,785.60 : 221,678.40 = 101,129.60 : x
  2. Step 2: Convert to fraction form
    147,785.60/221,678.40 = 101,129.60/x
  3. Step 3: Cross multiply
    147,785.60x = 221,678.40 × 101,129.60
  4. Step 4: Simplify right side
    147,785.60x = 22,418,247,920.64
  5. Step 5: Solve for x
    x = 22,418,247,920.64/147,785.60
  6. Step 6: Final answer
    x = 151,694.40

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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.