Home / 121,938.04-182,965.38-43,089.40

Finding the Fourth Proportional to 121,938.04, 182,965.38 and 43,089.40

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Solution

The fourth proportional to 121,938.04, 182,965.38 and 43,089.40 is: 64,654.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,938.04 : 182,965.38 = 43,089.40 : x
  2. Step 2: Convert to fraction form
    121,938.04/182,965.38 = 43,089.40/x
  3. Step 3: Cross multiply
    121,938.04x = 182,965.38 × 43,089.40
  4. Step 4: Simplify right side
    121,938.04x = 7,883,868,444.97
  5. Step 5: Solve for x
    x = 7,883,868,444.97/121,938.04
  6. Step 6: Final answer
    x = 64,654.71

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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.