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Finding the Fourth Proportional to 153,003.70, 229,505.55 and 68,731.30

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Solution

The fourth proportional to 153,003.70, 229,505.55 and 68,731.30 is: 103,096.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,003.70 : 229,505.55 = 68,731.30 : x
  2. Step 2: Convert to fraction form
    153,003.70/229,505.55 = 68,731.30/x
  3. Step 3: Cross multiply
    153,003.70x = 229,505.55 × 68,731.30
  4. Step 4: Simplify right side
    153,003.70x = 15,774,214,808.72
  5. Step 5: Solve for x
    x = 15,774,214,808.72/153,003.70
  6. Step 6: Final answer
    x = 103,096.95

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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.