Home / 147,006.23-220,231.10-86,854.82

Finding the Fourth Proportional to 147,006.23, 220,231.10 and 86,854.82

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Solution

The fourth proportional to 147,006.23, 220,231.10 and 86,854.82 is: 130,117.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,006.23 : 220,231.10 = 86,854.82 : x
  2. Step 2: Convert to fraction form
    147,006.23/220,231.10 = 86,854.82/x
  3. Step 3: Cross multiply
    147,006.23x = 220,231.10 × 86,854.82
  4. Step 4: Simplify right side
    147,006.23x = 19,128,131,664.88
  5. Step 5: Solve for x
    x = 19,128,131,664.88/147,006.23
  6. Step 6: Final answer
    x = 130,117.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.