Home / 127,439.04-175,875.12-76,453.98

Finding the Fourth Proportional to 127,439.04, 175,875.12 and 76,453.98

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Solution

The fourth proportional to 127,439.04, 175,875.12 and 76,453.98 is: 105,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,439.04 : 175,875.12 = 76,453.98 : x
  2. Step 2: Convert to fraction form
    127,439.04/175,875.12 = 76,453.98/x
  3. Step 3: Cross multiply
    127,439.04x = 175,875.12 × 76,453.98
  4. Step 4: Simplify right side
    127,439.04x = 13,446,352,906.98
  5. Step 5: Solve for x
    x = 13,446,352,906.98/127,439.04
  6. Step 6: Final answer
    x = 105,512.04

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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.