Home / 180,870.12-271,203.66-81,126.18

Finding the Fourth Proportional to 180,870.12, 271,203.66 and 81,126.18

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Solution

The fourth proportional to 180,870.12, 271,203.66 and 81,126.18 is: 121,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,870.12 : 271,203.66 = 81,126.18 : x
  2. Step 2: Convert to fraction form
    180,870.12/271,203.66 = 81,126.18/x
  3. Step 3: Cross multiply
    180,870.12x = 271,203.66 × 81,126.18
  4. Step 4: Simplify right side
    180,870.12x = 22,001,716,937.82
  5. Step 5: Solve for x
    x = 22,001,716,937.82/180,870.12
  6. Step 6: Final answer
    x = 121,643.73

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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.