Home / 140,071.16-193,296.95-76,407.59

Finding the Fourth Proportional to 140,071.16, 193,296.95 and 76,407.59

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Solution

The fourth proportional to 140,071.16, 193,296.95 and 76,407.59 is: 105,441.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,071.16 : 193,296.95 = 76,407.59 : x
  2. Step 2: Convert to fraction form
    140,071.16/193,296.95 = 76,407.59/x
  3. Step 3: Cross multiply
    140,071.16x = 193,296.95 × 76,407.59
  4. Step 4: Simplify right side
    140,071.16x = 14,769,354,103.85
  5. Step 5: Solve for x
    x = 14,769,354,103.85/140,071.16
  6. Step 6: Final answer
    x = 105,441.79

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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.