Home / 100,341.25-150,585.18-80,855.08

Finding the Fourth Proportional to 100,341.25, 150,585.18 and 80,855.08

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Solution

The fourth proportional to 100,341.25, 150,585.18 and 80,855.08 is: 121,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,341.25 : 150,585.18 = 80,855.08 : x
  2. Step 2: Convert to fraction form
    100,341.25/150,585.18 = 80,855.08/x
  3. Step 3: Cross multiply
    100,341.25x = 150,585.18 × 80,855.08
  4. Step 4: Simplify right side
    100,341.25x = 12,175,576,775.71
  5. Step 5: Solve for x
    x = 12,175,576,775.71/100,341.25
  6. Step 6: Final answer
    x = 121,341.69

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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.