Home / 99,302.18-137,043.28-55,698.80

Finding the Fourth Proportional to 99,302.18, 137,043.28 and 55,698.80

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Solution

The fourth proportional to 99,302.18, 137,043.28 and 55,698.80 is: 76,867.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,302.18 : 137,043.28 = 55,698.80 : x
  2. Step 2: Convert to fraction form
    99,302.18/137,043.28 = 55,698.80/x
  3. Step 3: Cross multiply
    99,302.18x = 137,043.28 × 55,698.80
  4. Step 4: Simplify right side
    99,302.18x = 7,633,146,244.06
  5. Step 5: Solve for x
    x = 7,633,146,244.06/99,302.18
  6. Step 6: Final answer
    x = 76,867.86

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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.