Home / 127,135.04-175,438.56-70,543.04

Finding the Fourth Proportional to 127,135.04, 175,438.56 and 70,543.04

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Solution

The fourth proportional to 127,135.04, 175,438.56 and 70,543.04 is: 97,345.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,135.04 : 175,438.56 = 70,543.04 : x
  2. Step 2: Convert to fraction form
    127,135.04/175,438.56 = 70,543.04/x
  3. Step 3: Cross multiply
    127,135.04x = 175,438.56 × 70,543.04
  4. Step 4: Simplify right side
    127,135.04x = 12,375,969,355.62
  5. Step 5: Solve for x
    x = 12,375,969,355.62/127,135.04
  6. Step 6: Final answer
    x = 97,345.07

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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.