Home / 542,475.22-813,619.95-143,120.11

Finding the Fourth Proportional to 542,475.22, 813,619.95 and 143,120.11

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Solution

The fourth proportional to 542,475.22, 813,619.95 and 143,120.11 is: 214,655.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,475.22 : 813,619.95 = 143,120.11 : x
  2. Step 2: Convert to fraction form
    542,475.22/813,619.95 = 143,120.11/x
  3. Step 3: Cross multiply
    542,475.22x = 813,619.95 × 143,120.11
  4. Step 4: Simplify right side
    542,475.22x = 116,445,376,742.19
  5. Step 5: Solve for x
    x = 116,445,376,742.19/542,475.22
  6. Step 6: Final answer
    x = 214,655.66

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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.