Home / 139,877.00-193,031.67-76,215.86

Finding the Fourth Proportional to 139,877.00, 193,031.67 and 76,215.86

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Solution

The fourth proportional to 139,877.00, 193,031.67 and 76,215.86 is: 105,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,877.00 : 193,031.67 = 76,215.86 : x
  2. Step 2: Convert to fraction form
    139,877.00/193,031.67 = 76,215.86/x
  3. Step 3: Cross multiply
    139,877.00x = 193,031.67 × 76,215.86
  4. Step 4: Simplify right side
    139,877.00x = 14,712,073,771.13
  5. Step 5: Solve for x
    x = 14,712,073,771.13/139,877.00
  6. Step 6: Final answer
    x = 105,178.65

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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.