Home / 115,117.20-172,557-62,415.36

Finding the Fourth Proportional to 115,117.20, 172,557 and 62,415.36

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Solution

The fourth proportional to 115,117.20, 172,557 and 62,415.36 is: 93,558.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,117.20 : 172,557 = 62,415.36 : x
  2. Step 2: Convert to fraction form
    115,117.20/172,557 = 62,415.36/x
  3. Step 3: Cross multiply
    115,117.20x = 172,557 × 62,415.36
  4. Step 4: Simplify right side
    115,117.20x = 10,770,207,275.52
  5. Step 5: Solve for x
    x = 10,770,207,275.52/115,117.20
  6. Step 6: Final answer
    x = 93,558.63

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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.