Home / 99,461.85-137,260.23-54,142.77

Finding the Fourth Proportional to 99,461.85, 137,260.23 and 54,142.77

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Solution

The fourth proportional to 99,461.85, 137,260.23 and 54,142.77 is: 74,718.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,461.85 : 137,260.23 = 54,142.77 : x
  2. Step 2: Convert to fraction form
    99,461.85/137,260.23 = 54,142.77/x
  3. Step 3: Cross multiply
    99,461.85x = 137,260.23 × 54,142.77
  4. Step 4: Simplify right side
    99,461.85x = 7,431,649,063.04
  5. Step 5: Solve for x
    x = 7,431,649,063.04/99,461.85
  6. Step 6: Final answer
    x = 74,718.59

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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.