Home / 176,178.72-243,126.78-99,696.18

Finding the Fourth Proportional to 176,178.72, 243,126.78 and 99,696.18

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Solution

The fourth proportional to 176,178.72, 243,126.78 and 99,696.18 is: 137,580.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,178.72 : 243,126.78 = 99,696.18 : x
  2. Step 2: Convert to fraction form
    176,178.72/243,126.78 = 99,696.18/x
  3. Step 3: Cross multiply
    176,178.72x = 243,126.78 × 99,696.18
  4. Step 4: Simplify right side
    176,178.72x = 24,238,811,221.70
  5. Step 5: Solve for x
    x = 24,238,811,221.70/176,178.72
  6. Step 6: Final answer
    x = 137,580.81

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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.