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Finding the Fourth Proportional to 101,503.47, 152,269.80 and 31,388.25

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Solution

The fourth proportional to 101,503.47, 152,269.80 and 31,388.25 is: 47,086.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,503.47 : 152,269.80 = 31,388.25 : x
  2. Step 2: Convert to fraction form
    101,503.47/152,269.80 = 31,388.25/x
  3. Step 3: Cross multiply
    101,503.47x = 152,269.80 × 31,388.25
  4. Step 4: Simplify right side
    101,503.47x = 4,779,482,549.85
  5. Step 5: Solve for x
    x = 4,779,482,549.85/101,503.47
  6. Step 6: Final answer
    x = 47,086.89

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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.