Home / 140,062.66-193,285.22-76,399.08

Finding the Fourth Proportional to 140,062.66, 193,285.22 and 76,399.08

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Solution

The fourth proportional to 140,062.66, 193,285.22 and 76,399.08 is: 105,430.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,062.66 : 193,285.22 = 76,399.08 : x
  2. Step 2: Convert to fraction form
    140,062.66/193,285.22 = 76,399.08/x
  3. Step 3: Cross multiply
    140,062.66x = 193,285.22 × 76,399.08
  4. Step 4: Simplify right side
    140,062.66x = 14,766,812,985.60
  5. Step 5: Solve for x
    x = 14,766,812,985.60/140,062.66
  6. Step 6: Final answer
    x = 105,430.05

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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.