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Finding the Fourth Proportional to 101,470.75, 152,207.15 and 45,313.72

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Solution

The fourth proportional to 101,470.75, 152,207.15 and 45,313.72 is: 67,971.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,470.75 : 152,207.15 = 45,313.72 : x
  2. Step 2: Convert to fraction form
    101,470.75/152,207.15 = 45,313.72/x
  3. Step 3: Cross multiply
    101,470.75x = 152,207.15 × 45,313.72
  4. Step 4: Simplify right side
    101,470.75x = 6,897,071,189.49
  5. Step 5: Solve for x
    x = 6,897,071,189.49/101,470.75
  6. Step 6: Final answer
    x = 67,971.03

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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.