Home / 127,142.36-175,456.20-70,553.60

Finding the Fourth Proportional to 127,142.36, 175,456.20 and 70,553.60

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Solution

The fourth proportional to 127,142.36, 175,456.20 and 70,553.60 is: 97,363.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,142.36 : 175,456.20 = 70,553.60 : x
  2. Step 2: Convert to fraction form
    127,142.36/175,456.20 = 70,553.60/x
  3. Step 3: Cross multiply
    127,142.36x = 175,456.20 × 70,553.60
  4. Step 4: Simplify right side
    127,142.36x = 12,379,066,552.32
  5. Step 5: Solve for x
    x = 12,379,066,552.32/127,142.36
  6. Step 6: Final answer
    x = 97,363.83

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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.