Home / 127,580.65-176,031.25-107,240.03

Finding the Fourth Proportional to 127,580.65, 176,031.25 and 107,240.03

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Solution

The fourth proportional to 127,580.65, 176,031.25 and 107,240.03 is: 147,965.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,580.65 : 176,031.25 = 107,240.03 : x
  2. Step 2: Convert to fraction form
    127,580.65/176,031.25 = 107,240.03/x
  3. Step 3: Cross multiply
    127,580.65x = 176,031.25 × 107,240.03
  4. Step 4: Simplify right side
    127,580.65x = 18,877,595,784.83
  5. Step 5: Solve for x
    x = 18,877,595,784.83/127,580.65
  6. Step 6: Final answer
    x = 147,965.98

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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.