Home / 176,114.16-243,011.76-100,648.08

Finding the Fourth Proportional to 176,114.16, 243,011.76 and 100,648.08

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Solution

The fourth proportional to 176,114.16, 243,011.76 and 100,648.08 is: 138,879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,114.16 : 243,011.76 = 100,648.08 : x
  2. Step 2: Convert to fraction form
    176,114.16/243,011.76 = 100,648.08/x
  3. Step 3: Cross multiply
    176,114.16x = 243,011.76 × 100,648.08
  4. Step 4: Simplify right side
    176,114.16x = 24,458,667,061.42
  5. Step 5: Solve for x
    x = 24,458,667,061.42/176,114.16
  6. Step 6: Final answer
    x = 138,879.62

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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.