Home / 140,306.28-193,615.62-76,632.36

Finding the Fourth Proportional to 140,306.28, 193,615.62 and 76,632.36

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Solution

The fourth proportional to 140,306.28, 193,615.62 and 76,632.36 is: 105,748.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,306.28 : 193,615.62 = 76,632.36 : x
  2. Step 2: Convert to fraction form
    140,306.28/193,615.62 = 76,632.36/x
  3. Step 3: Cross multiply
    140,306.28x = 193,615.62 × 76,632.36
  4. Step 4: Simplify right side
    140,306.28x = 14,837,221,893.46
  5. Step 5: Solve for x
    x = 14,837,221,893.46/140,306.28
  6. Step 6: Final answer
    x = 105,748.81

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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.