Home / 104,872.04-157,331.10-77,085.80

Finding the Fourth Proportional to 104,872.04, 157,331.10 and 77,085.80

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Solution

The fourth proportional to 104,872.04, 157,331.10 and 77,085.80 is: 115,645.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,872.04 : 157,331.10 = 77,085.80 : x
  2. Step 2: Convert to fraction form
    104,872.04/157,331.10 = 77,085.80/x
  3. Step 3: Cross multiply
    104,872.04x = 157,331.10 × 77,085.80
  4. Step 4: Simplify right side
    104,872.04x = 12,127,993,708.38
  5. Step 5: Solve for x
    x = 12,127,993,708.38/104,872.04
  6. Step 6: Final answer
    x = 115,645.64

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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.