Home / 143,934.90-215,877.93-38,730.42

Finding the Fourth Proportional to 143,934.90, 215,877.93 and 38,730.42

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Solution

The fourth proportional to 143,934.90, 215,877.93 and 38,730.42 is: 58,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,934.90 : 215,877.93 = 38,730.42 : x
  2. Step 2: Convert to fraction form
    143,934.90/215,877.93 = 38,730.42/x
  3. Step 3: Cross multiply
    143,934.90x = 215,877.93 × 38,730.42
  4. Step 4: Simplify right side
    143,934.90x = 8,361,042,897.63
  5. Step 5: Solve for x
    x = 8,361,042,897.63/143,934.90
  6. Step 6: Final answer
    x = 58,089.06

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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.