Home / 142,818.19-214,257.26-42,985.69

Finding the Fourth Proportional to 142,818.19, 214,257.26 and 42,985.69

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Solution

The fourth proportional to 142,818.19, 214,257.26 and 42,985.69 is: 64,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,818.19 : 214,257.26 = 42,985.69 : x
  2. Step 2: Convert to fraction form
    142,818.19/214,257.26 = 42,985.69/x
  3. Step 3: Cross multiply
    142,818.19x = 214,257.26 × 42,985.69
  4. Step 4: Simplify right side
    142,818.19x = 9,209,996,158.61
  5. Step 5: Solve for x
    x = 9,209,996,158.61/142,818.19
  6. Step 6: Final answer
    x = 64,487.56

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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.