Home / 127,142.65-175,459.09-69,787.34

Finding the Fourth Proportional to 127,142.65, 175,459.09 and 69,787.34

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Solution

The fourth proportional to 127,142.65, 175,459.09 and 69,787.34 is: 96,307.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,142.65 : 175,459.09 = 69,787.34 : x
  2. Step 2: Convert to fraction form
    127,142.65/175,459.09 = 69,787.34/x
  3. Step 3: Cross multiply
    127,142.65x = 175,459.09 × 69,787.34
  4. Step 4: Simplify right side
    127,142.65x = 12,244,823,169.92
  5. Step 5: Solve for x
    x = 12,244,823,169.92/127,142.65
  6. Step 6: Final answer
    x = 96,307.75

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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.