Home / 127,846.74-176,407.40-74,109.72

Finding the Fourth Proportional to 127,846.74, 176,407.40 and 74,109.72

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Solution

The fourth proportional to 127,846.74, 176,407.40 and 74,109.72 is: 102,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,846.74 : 176,407.40 = 74,109.72 : x
  2. Step 2: Convert to fraction form
    127,846.74/176,407.40 = 74,109.72/x
  3. Step 3: Cross multiply
    127,846.74x = 176,407.40 × 74,109.72
  4. Step 4: Simplify right side
    127,846.74x = 13,073,503,019.93
  5. Step 5: Solve for x
    x = 13,073,503,019.93/127,846.74
  6. Step 6: Final answer
    x = 102,259.18

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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.