Home / 127,758.60-176,312.18-71,169.96

Finding the Fourth Proportional to 127,758.60, 176,312.18 and 71,169.96

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Solution

The fourth proportional to 127,758.60, 176,312.18 and 71,169.96 is: 98,217.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,758.60 : 176,312.18 = 71,169.96 : x
  2. Step 2: Convert to fraction form
    127,758.60/176,312.18 = 71,169.96/x
  3. Step 3: Cross multiply
    127,758.60x = 176,312.18 × 71,169.96
  4. Step 4: Simplify right side
    127,758.60x = 12,548,130,798.11
  5. Step 5: Solve for x
    x = 12,548,130,798.11/127,758.60
  6. Step 6: Final answer
    x = 98,217.50

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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.