Home / 140,987.61-194,374.49-112,012.02

Finding the Fourth Proportional to 140,987.61, 194,374.49 and 112,012.02

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Solution

The fourth proportional to 140,987.61, 194,374.49 and 112,012.02 is: 154,426.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,987.61 : 194,374.49 = 112,012.02 : x
  2. Step 2: Convert to fraction form
    140,987.61/194,374.49 = 112,012.02/x
  3. Step 3: Cross multiply
    140,987.61x = 194,374.49 × 112,012.02
  4. Step 4: Simplify right side
    140,987.61x = 21,772,278,701.31
  5. Step 5: Solve for x
    x = 21,772,278,701.31/140,987.61
  6. Step 6: Final answer
    x = 154,426.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.