Home / 140,395.40-193,746.15-76,733.22

Finding the Fourth Proportional to 140,395.40, 193,746.15 and 76,733.22

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Solution

The fourth proportional to 140,395.40, 193,746.15 and 76,733.22 is: 105,892.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,395.40 : 193,746.15 = 76,733.22 : x
  2. Step 2: Convert to fraction form
    140,395.40/193,746.15 = 76,733.22/x
  3. Step 3: Cross multiply
    140,395.40x = 193,746.15 × 76,733.22
  4. Step 4: Simplify right side
    140,395.40x = 14,866,765,952.10
  5. Step 5: Solve for x
    x = 14,866,765,952.10/140,395.40
  6. Step 6: Final answer
    x = 105,892.12

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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.