Home / 140,020.31-193,228.03-76,358.57

Finding the Fourth Proportional to 140,020.31, 193,228.03 and 76,358.57

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Solution

The fourth proportional to 140,020.31, 193,228.03 and 76,358.57 is: 105,374.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,020.31 : 193,228.03 = 76,358.57 : x
  2. Step 2: Convert to fraction form
    140,020.31/193,228.03 = 76,358.57/x
  3. Step 3: Cross multiply
    140,020.31x = 193,228.03 × 76,358.57
  4. Step 4: Simplify right side
    140,020.31x = 14,754,615,184.03
  5. Step 5: Solve for x
    x = 14,754,615,184.03/140,020.31
  6. Step 6: Final answer
    x = 105,374.82

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1.5x scale

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.