Home / 121,774.47-182,684.39-42,938.79

Finding the Fourth Proportional to 121,774.47, 182,684.39 and 42,938.79

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Solution

The fourth proportional to 121,774.47, 182,684.39 and 42,938.79 is: 64,416.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,774.47 : 182,684.39 = 42,938.79 : x
  2. Step 2: Convert to fraction form
    121,774.47/182,684.39 = 42,938.79/x
  3. Step 3: Cross multiply
    121,774.47x = 182,684.39 × 42,938.79
  4. Step 4: Simplify right side
    121,774.47x = 7,844,246,443.79
  5. Step 5: Solve for x
    x = 7,844,246,443.79/121,774.47
  6. Step 6: Final answer
    x = 64,416.18

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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.