Home / 212,147.45-292,690.63-131,545.97

Finding the Fourth Proportional to 212,147.45, 292,690.63 and 131,545.97

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Solution

The fourth proportional to 212,147.45, 292,690.63 and 131,545.97 is: 181,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,147.45 : 292,690.63 = 131,545.97 : x
  2. Step 2: Convert to fraction form
    212,147.45/292,690.63 = 131,545.97/x
  3. Step 3: Cross multiply
    212,147.45x = 292,690.63 × 131,545.97
  4. Step 4: Simplify right side
    212,147.45x = 38,502,272,833.26
  5. Step 5: Solve for x
    x = 38,502,272,833.26/212,147.45
  6. Step 6: Final answer
    x = 181,488.27

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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.