Home / 140,464.89-193,841.61-76,803.21

Finding the Fourth Proportional to 140,464.89, 193,841.61 and 76,803.21

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Solution

The fourth proportional to 140,464.89, 193,841.61 and 76,803.21 is: 105,988.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,464.89 : 193,841.61 = 76,803.21 : x
  2. Step 2: Convert to fraction form
    140,464.89/193,841.61 = 76,803.21/x
  3. Step 3: Cross multiply
    140,464.89x = 193,841.61 × 76,803.21
  4. Step 4: Simplify right side
    140,464.89x = 14,887,657,879.57
  5. Step 5: Solve for x
    x = 14,887,657,879.57/140,464.89
  6. Step 6: Final answer
    x = 105,988.46

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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.