Home / 156,938.04-235,329.84-78,096.42

Finding the Fourth Proportional to 156,938.04, 235,329.84 and 78,096.42

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Solution

The fourth proportional to 156,938.04, 235,329.84 and 78,096.42 is: 117,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,938.04 : 235,329.84 = 78,096.42 : x
  2. Step 2: Convert to fraction form
    156,938.04/235,329.84 = 78,096.42/x
  3. Step 3: Cross multiply
    156,938.04x = 235,329.84 × 78,096.42
  4. Step 4: Simplify right side
    156,938.04x = 18,378,418,023.17
  5. Step 5: Solve for x
    x = 18,378,418,023.17/156,938.04
  6. Step 6: Final answer
    x = 117,106.20

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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.