Home / 143,929.80-215,712.45-55,064.70

Finding the Fourth Proportional to 143,929.80, 215,712.45 and 55,064.70

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Solution

The fourth proportional to 143,929.80, 215,712.45 and 55,064.70 is: 82,527.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,929.80 : 215,712.45 = 55,064.70 : x
  2. Step 2: Convert to fraction form
    143,929.80/215,712.45 = 55,064.70/x
  3. Step 3: Cross multiply
    143,929.80x = 215,712.45 × 55,064.70
  4. Step 4: Simplify right side
    143,929.80x = 11,878,141,345.52
  5. Step 5: Solve for x
    x = 11,878,141,345.52/143,929.80
  6. Step 6: Final answer
    x = 82,527.32

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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.