Home / 127,400.80-175,812.24-70,815.52

Finding the Fourth Proportional to 127,400.80, 175,812.24 and 70,815.52

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Solution

The fourth proportional to 127,400.80, 175,812.24 and 70,815.52 is: 97,724.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,400.80 : 175,812.24 = 70,815.52 : x
  2. Step 2: Convert to fraction form
    127,400.80/175,812.24 = 70,815.52/x
  3. Step 3: Cross multiply
    127,400.80x = 175,812.24 × 70,815.52
  4. Step 4: Simplify right side
    127,400.80x = 12,450,235,197.96
  5. Step 5: Solve for x
    x = 12,450,235,197.96/127,400.80
  6. Step 6: Final answer
    x = 97,724.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.