Home / 143,618.80-215,428.20-113,875.60

Finding the Fourth Proportional to 143,618.80, 215,428.20 and 113,875.60

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Solution

The fourth proportional to 143,618.80, 215,428.20 and 113,875.60 is: 170,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,618.80 : 215,428.20 = 113,875.60 : x
  2. Step 2: Convert to fraction form
    143,618.80/215,428.20 = 113,875.60/x
  3. Step 3: Cross multiply
    143,618.80x = 215,428.20 × 113,875.60
  4. Step 4: Simplify right side
    143,618.80x = 24,532,015,531.92
  5. Step 5: Solve for x
    x = 24,532,015,531.92/143,618.80
  6. Step 6: Final answer
    x = 170,813.40

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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.