Home / 142,780.04-214,200.12-54,031.60

Finding the Fourth Proportional to 142,780.04, 214,200.12 and 54,031.60

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Solution

The fourth proportional to 142,780.04, 214,200.12 and 54,031.60 is: 81,058.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,780.04 : 214,200.12 = 54,031.60 : x
  2. Step 2: Convert to fraction form
    142,780.04/214,200.12 = 54,031.60/x
  3. Step 3: Cross multiply
    142,780.04x = 214,200.12 × 54,031.60
  4. Step 4: Simplify right side
    142,780.04x = 11,573,575,203.79
  5. Step 5: Solve for x
    x = 11,573,575,203.79/142,780.04
  6. Step 6: Final answer
    x = 81,058.78

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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.