Home / 176,457.87-243,521.20-99,991.80

Finding the Fourth Proportional to 176,457.87, 243,521.20 and 99,991.80

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Solution

The fourth proportional to 176,457.87, 243,521.20 and 99,991.80 is: 137,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,457.87 : 243,521.20 = 99,991.80 : x
  2. Step 2: Convert to fraction form
    176,457.87/243,521.20 = 99,991.80/x
  3. Step 3: Cross multiply
    176,457.87x = 243,521.20 × 99,991.80
  4. Step 4: Simplify right side
    176,457.87x = 24,350,123,856.66
  5. Step 5: Solve for x
    x = 24,350,123,856.66/176,457.87
  6. Step 6: Final answer
    x = 137,993.98

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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.