Home / 157,211.60-235,817.40-107,445.20

Finding the Fourth Proportional to 157,211.60, 235,817.40 and 107,445.20

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Solution

The fourth proportional to 157,211.60, 235,817.40 and 107,445.20 is: 161,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,211.60 : 235,817.40 = 107,445.20 : x
  2. Step 2: Convert to fraction form
    157,211.60/235,817.40 = 107,445.20/x
  3. Step 3: Cross multiply
    157,211.60x = 235,817.40 × 107,445.20
  4. Step 4: Simplify right side
    157,211.60x = 25,337,447,706.48
  5. Step 5: Solve for x
    x = 25,337,447,706.48/157,211.60
  6. Step 6: Final answer
    x = 161,167.80

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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.