Home / 140,240.16-193,531.40-76,578.02

Finding the Fourth Proportional to 140,240.16, 193,531.40 and 76,578.02

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Solution

The fourth proportional to 140,240.16, 193,531.40 and 76,578.02 is: 105,677.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,240.16 : 193,531.40 = 76,578.02 : x
  2. Step 2: Convert to fraction form
    140,240.16/193,531.40 = 76,578.02/x
  3. Step 3: Cross multiply
    140,240.16x = 193,531.40 × 76,578.02
  4. Step 4: Simplify right side
    140,240.16x = 14,820,251,419.83
  5. Step 5: Solve for x
    x = 14,820,251,419.83/140,240.16
  6. Step 6: Final answer
    x = 105,677.66

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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.