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Finding the Fourth Proportional to 147,132.30, 220,813.65 and 68,256.30

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Solution

The fourth proportional to 147,132.30, 220,813.65 and 68,256.30 is: 102,437.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,132.30 : 220,813.65 = 68,256.30 : x
  2. Step 2: Convert to fraction form
    147,132.30/220,813.65 = 68,256.30/x
  3. Step 3: Cross multiply
    147,132.30x = 220,813.65 × 68,256.30
  4. Step 4: Simplify right side
    147,132.30x = 15,071,922,738.50
  5. Step 5: Solve for x
    x = 15,071,922,738.50/147,132.30
  6. Step 6: Final answer
    x = 102,437.89

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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.