Home / 140,035.64-193,265.79-79,615.40

Finding the Fourth Proportional to 140,035.64, 193,265.79 and 79,615.40

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Solution

The fourth proportional to 140,035.64, 193,265.79 and 79,615.40 is: 109,878.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,035.64 : 193,265.79 = 79,615.40 : x
  2. Step 2: Convert to fraction form
    140,035.64/193,265.79 = 79,615.40/x
  3. Step 3: Cross multiply
    140,035.64x = 193,265.79 × 79,615.40
  4. Step 4: Simplify right side
    140,035.64x = 15,386,933,177.17
  5. Step 5: Solve for x
    x = 15,386,933,177.17/140,035.64
  6. Step 6: Final answer
    x = 109,878.69

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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.