Home / 142,381.20-213,499.56-47,577.36

Finding the Fourth Proportional to 142,381.20, 213,499.56 and 47,577.36

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Solution

The fourth proportional to 142,381.20, 213,499.56 and 47,577.36 is: 71,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,381.20 : 213,499.56 = 47,577.36 : x
  2. Step 2: Convert to fraction form
    142,381.20/213,499.56 = 47,577.36/x
  3. Step 3: Cross multiply
    142,381.20x = 213,499.56 × 47,577.36
  4. Step 4: Simplify right side
    142,381.20x = 10,157,745,425.96
  5. Step 5: Solve for x
    x = 10,157,745,425.96/142,381.20
  6. Step 6: Final answer
    x = 71,341.90

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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.