Home / 185,008.22-255,312.12-100,125.28

Finding the Fourth Proportional to 185,008.22, 255,312.12 and 100,125.28

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Solution

The fourth proportional to 185,008.22, 255,312.12 and 100,125.28 is: 138,173.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,008.22 : 255,312.12 = 100,125.28 : x
  2. Step 2: Convert to fraction form
    185,008.22/255,312.12 = 100,125.28/x
  3. Step 3: Cross multiply
    185,008.22x = 255,312.12 × 100,125.28
  4. Step 4: Simplify right side
    185,008.22x = 25,563,197,502.39
  5. Step 5: Solve for x
    x = 25,563,197,502.39/185,008.22
  6. Step 6: Final answer
    x = 138,173.31

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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.