Home / 185,013.24-255,319.02-100,130.28

Finding the Fourth Proportional to 185,013.24, 255,319.02 and 100,130.28

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Solution

The fourth proportional to 185,013.24, 255,319.02 and 100,130.28 is: 138,180.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,013.24 : 255,319.02 = 100,130.28 : x
  2. Step 2: Convert to fraction form
    185,013.24/255,319.02 = 100,130.28/x
  3. Step 3: Cross multiply
    185,013.24x = 255,319.02 × 100,130.28
  4. Step 4: Simplify right side
    185,013.24x = 25,565,164,961.93
  5. Step 5: Solve for x
    x = 25,565,164,961.93/185,013.24
  6. Step 6: Final answer
    x = 138,180.19

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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.