Home / 130,156.60-195,234.90-77,625.40

Finding the Fourth Proportional to 130,156.60, 195,234.90 and 77,625.40

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Solution

The fourth proportional to 130,156.60, 195,234.90 and 77,625.40 is: 116,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,156.60 : 195,234.90 = 77,625.40 : x
  2. Step 2: Convert to fraction form
    130,156.60/195,234.90 = 77,625.40/x
  3. Step 3: Cross multiply
    130,156.60x = 195,234.90 × 77,625.40
  4. Step 4: Simplify right side
    130,156.60x = 15,155,187,206.46
  5. Step 5: Solve for x
    x = 15,155,187,206.46/130,156.60
  6. Step 6: Final answer
    x = 116,438.10

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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.