Home / 115,164.16-158,841.94-76,331.76

Finding the Fourth Proportional to 115,164.16, 158,841.94 and 76,331.76

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Solution

The fourth proportional to 115,164.16, 158,841.94 and 76,331.76 is: 105,281.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,164.16 : 158,841.94 = 76,331.76 : x
  2. Step 2: Convert to fraction form
    115,164.16/158,841.94 = 76,331.76/x
  3. Step 3: Cross multiply
    115,164.16x = 158,841.94 × 76,331.76
  4. Step 4: Simplify right side
    115,164.16x = 12,124,684,842.01
  5. Step 5: Solve for x
    x = 12,124,684,842.01/115,164.16
  6. Step 6: Final answer
    x = 105,281.75

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1.5x scale

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.