Home / 176,178.13-243,123.20-103,589.22

Finding the Fourth Proportional to 176,178.13, 243,123.20 and 103,589.22

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Solution

The fourth proportional to 176,178.13, 243,123.20 and 103,589.22 is: 142,951.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,178.13 : 243,123.20 = 103,589.22 : x
  2. Step 2: Convert to fraction form
    176,178.13/243,123.20 = 103,589.22/x
  3. Step 3: Cross multiply
    176,178.13x = 243,123.20 × 103,589.22
  4. Step 4: Simplify right side
    176,178.13x = 25,184,942,133.96
  5. Step 5: Solve for x
    x = 25,184,942,133.96/176,178.13
  6. Step 6: Final answer
    x = 142,951.58

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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.