Home / 115,238.12-172,853.88-62,978.60

Finding the Fourth Proportional to 115,238.12, 172,853.88 and 62,978.60

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Solution

The fourth proportional to 115,238.12, 172,853.88 and 62,978.60 is: 94,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,238.12 : 172,853.88 = 62,978.60 : x
  2. Step 2: Convert to fraction form
    115,238.12/172,853.88 = 62,978.60/x
  3. Step 3: Cross multiply
    115,238.12x = 172,853.88 × 62,978.60
  4. Step 4: Simplify right side
    115,238.12x = 10,886,095,366.97
  5. Step 5: Solve for x
    x = 10,886,095,366.97/115,238.12
  6. Step 6: Final answer
    x = 94,466.10

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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.