Home / 127,742.32-176,289.84-71,153.72

Finding the Fourth Proportional to 127,742.32, 176,289.84 and 71,153.72

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Solution

The fourth proportional to 127,742.32, 176,289.84 and 71,153.72 is: 98,195.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,742.32 : 176,289.84 = 71,153.72 : x
  2. Step 2: Convert to fraction form
    127,742.32/176,289.84 = 71,153.72/x
  3. Step 3: Cross multiply
    127,742.32x = 176,289.84 × 71,153.72
  4. Step 4: Simplify right side
    127,742.32x = 12,543,677,914.20
  5. Step 5: Solve for x
    x = 12,543,677,914.20/127,742.32
  6. Step 6: Final answer
    x = 98,195.16

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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.