Home / 95,426.80-143,140.20-85,913.35

Finding the Fourth Proportional to 95,426.80, 143,140.20 and 85,913.35

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Solution

The fourth proportional to 95,426.80, 143,140.20 and 85,913.35 is: 128,870.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,426.80 : 143,140.20 = 85,913.35 : x
  2. Step 2: Convert to fraction form
    95,426.80/143,140.20 = 85,913.35/x
  3. Step 3: Cross multiply
    95,426.80x = 143,140.20 × 85,913.35
  4. Step 4: Simplify right side
    95,426.80x = 12,297,654,101.67
  5. Step 5: Solve for x
    x = 12,297,654,101.67/95,426.80
  6. Step 6: Final answer
    x = 128,870.03

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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.