Home / 127,080.42-175,371.18-70,491.78

Finding the Fourth Proportional to 127,080.42, 175,371.18 and 70,491.78

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Solution

The fourth proportional to 127,080.42, 175,371.18 and 70,491.78 is: 97,278.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,080.42 : 175,371.18 = 70,491.78 : x
  2. Step 2: Convert to fraction form
    127,080.42/175,371.18 = 70,491.78/x
  3. Step 3: Cross multiply
    127,080.42x = 175,371.18 × 70,491.78
  4. Step 4: Simplify right side
    127,080.42x = 12,362,226,638.90
  5. Step 5: Solve for x
    x = 12,362,226,638.90/127,080.42
  6. Step 6: Final answer
    x = 97,278.77

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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.