Home / 127,251.90-190,877.85-103,632.30

Finding the Fourth Proportional to 127,251.90, 190,877.85 and 103,632.30

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Solution

The fourth proportional to 127,251.90, 190,877.85 and 103,632.30 is: 155,448.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,251.90 : 190,877.85 = 103,632.30 : x
  2. Step 2: Convert to fraction form
    127,251.90/190,877.85 = 103,632.30/x
  3. Step 3: Cross multiply
    127,251.90x = 190,877.85 × 103,632.30
  4. Step 4: Simplify right side
    127,251.90x = 19,781,110,614.56
  5. Step 5: Solve for x
    x = 19,781,110,614.56/127,251.90
  6. Step 6: Final answer
    x = 155,448.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.