Home / 121,437.48-182,143.20-38,325

Finding the Fourth Proportional to 121,437.48, 182,143.20 and 38,325

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Solution

The fourth proportional to 121,437.48, 182,143.20 and 38,325 is: 57,483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,437.48 : 182,143.20 = 38,325 : x
  2. Step 2: Convert to fraction form
    121,437.48/182,143.20 = 38,325/x
  3. Step 3: Cross multiply
    121,437.48x = 182,143.20 × 38,325
  4. Step 4: Simplify right side
    121,437.48x = 6,980,638,140
  5. Step 5: Solve for x
    x = 6,980,638,140/121,437.48
  6. Step 6: Final answer
    x = 57,483.39

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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.