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Finding the Fourth Proportional to 127,279, 175,645.08 and 70,690.84

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Solution

The fourth proportional to 127,279, 175,645.08 and 70,690.84 is: 97,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,279 : 175,645.08 = 70,690.84 : x
  2. Step 2: Convert to fraction form
    127,279/175,645.08 = 70,690.84/x
  3. Step 3: Cross multiply
    127,279x = 175,645.08 × 70,690.84
  4. Step 4: Simplify right side
    127,279x = 12,416,498,247.07
  5. Step 5: Solve for x
    x = 12,416,498,247.07/127,279
  6. Step 6: Final answer
    x = 97,553.39

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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.