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Finding the Fourth Proportional to 134,225.12, 185,226 and 86,480.48

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Solution

The fourth proportional to 134,225.12, 185,226 and 86,480.48 is: 119,340.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,225.12 : 185,226 = 86,480.48 : x
  2. Step 2: Convert to fraction form
    134,225.12/185,226 = 86,480.48/x
  3. Step 3: Cross multiply
    134,225.12x = 185,226 × 86,480.48
  4. Step 4: Simplify right side
    134,225.12x = 16,018,433,388.48
  5. Step 5: Solve for x
    x = 16,018,433,388.48/134,225.12
  6. Step 6: Final answer
    x = 119,340.06

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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.