Home / 127,278.72-175,641.57-70,690.14

Finding the Fourth Proportional to 127,278.72, 175,641.57 and 70,690.14

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Solution

The fourth proportional to 127,278.72, 175,641.57 and 70,690.14 is: 97,550.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,278.72 : 175,641.57 = 70,690.14 : x
  2. Step 2: Convert to fraction form
    127,278.72/175,641.57 = 70,690.14/x
  3. Step 3: Cross multiply
    127,278.72x = 175,641.57 × 70,690.14
  4. Step 4: Simplify right side
    127,278.72x = 12,416,127,173.12
  5. Step 5: Solve for x
    x = 12,416,127,173.12/127,278.72
  6. Step 6: Final answer
    x = 97,550.69

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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.