Home / 176,218.30-243,123.36-99,729.80

Finding the Fourth Proportional to 176,218.30, 243,123.36 and 99,729.80

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Solution

The fourth proportional to 176,218.30, 243,123.36 and 99,729.80 is: 137,594.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,218.30 : 243,123.36 = 99,729.80 : x
  2. Step 2: Convert to fraction form
    176,218.30/243,123.36 = 99,729.80/x
  3. Step 3: Cross multiply
    176,218.30x = 243,123.36 × 99,729.80
  4. Step 4: Simplify right side
    176,218.30x = 24,246,643,390.24
  5. Step 5: Solve for x
    x = 24,246,643,390.24/176,218.30
  6. Step 6: Final answer
    x = 137,594.35

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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.