Home / 143,444.20-215,166.30-103,815.40

Finding the Fourth Proportional to 143,444.20, 215,166.30 and 103,815.40

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Solution

The fourth proportional to 143,444.20, 215,166.30 and 103,815.40 is: 155,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,444.20 : 215,166.30 = 103,815.40 : x
  2. Step 2: Convert to fraction form
    143,444.20/215,166.30 = 103,815.40/x
  3. Step 3: Cross multiply
    143,444.20x = 215,166.30 × 103,815.40
  4. Step 4: Simplify right side
    143,444.20x = 22,337,575,501.02
  5. Step 5: Solve for x
    x = 22,337,575,501.02/143,444.20
  6. Step 6: Final answer
    x = 155,723.10

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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.