Home / 127,697.04-176,248.56-76,712.16

Finding the Fourth Proportional to 127,697.04, 176,248.56 and 76,712.16

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Solution

The fourth proportional to 127,697.04, 176,248.56 and 76,712.16 is: 105,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,697.04 : 176,248.56 = 76,712.16 : x
  2. Step 2: Convert to fraction form
    127,697.04/176,248.56 = 76,712.16/x
  3. Step 3: Cross multiply
    127,697.04x = 176,248.56 × 76,712.16
  4. Step 4: Simplify right side
    127,697.04x = 13,520,407,734.49
  5. Step 5: Solve for x
    x = 13,520,407,734.49/127,697.04
  6. Step 6: Final answer
    x = 105,878.79

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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.