Home / 127,127.90-175,424.91-75,436.09

Finding the Fourth Proportional to 127,127.90, 175,424.91 and 75,436.09

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Solution

The fourth proportional to 127,127.90, 175,424.91 and 75,436.09 is: 104,094.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,127.90 : 175,424.91 = 75,436.09 : x
  2. Step 2: Convert to fraction form
    127,127.90/175,424.91 = 75,436.09/x
  3. Step 3: Cross multiply
    127,127.90x = 175,424.91 × 75,436.09
  4. Step 4: Simplify right side
    127,127.90x = 13,233,368,921.82
  5. Step 5: Solve for x
    x = 13,233,368,921.82/127,127.90
  6. Step 6: Final answer
    x = 104,094.92

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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.