Home / 127,143.78-175,462.05-70,558.80

Finding the Fourth Proportional to 127,143.78, 175,462.05 and 70,558.80

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Solution

The fourth proportional to 127,143.78, 175,462.05 and 70,558.80 is: 97,373.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,143.78 : 175,462.05 = 70,558.80 : x
  2. Step 2: Convert to fraction form
    127,143.78/175,462.05 = 70,558.80/x
  3. Step 3: Cross multiply
    127,143.78x = 175,462.05 × 70,558.80
  4. Step 4: Simplify right side
    127,143.78x = 12,380,391,693.54
  5. Step 5: Solve for x
    x = 12,380,391,693.54/127,143.78
  6. Step 6: Final answer
    x = 97,373.16

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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.