Home / 105,127.20-157,737.60-55,195.20

Finding the Fourth Proportional to 105,127.20, 157,737.60 and 55,195.20

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Solution

The fourth proportional to 105,127.20, 157,737.60 and 55,195.20 is: 82,817.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,127.20 : 157,737.60 = 55,195.20 : x
  2. Step 2: Convert to fraction form
    105,127.20/157,737.60 = 55,195.20/x
  3. Step 3: Cross multiply
    105,127.20x = 157,737.60 × 55,195.20
  4. Step 4: Simplify right side
    105,127.20x = 8,706,358,379.52
  5. Step 5: Solve for x
    x = 8,706,358,379.52/105,127.20
  6. Step 6: Final answer
    x = 82,817.37

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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.