Home / 100,974.20-151,457.72-47,646.70

Finding the Fourth Proportional to 100,974.20, 151,457.72 and 47,646.70

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Solution

The fourth proportional to 100,974.20, 151,457.72 and 47,646.70 is: 71,468.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,974.20 : 151,457.72 = 47,646.70 : x
  2. Step 2: Convert to fraction form
    100,974.20/151,457.72 = 47,646.70/x
  3. Step 3: Cross multiply
    100,974.20x = 151,457.72 × 47,646.70
  4. Step 4: Simplify right side
    100,974.20x = 7,216,459,930.65
  5. Step 5: Solve for x
    x = 7,216,459,930.65/100,974.20
  6. Step 6: Final answer
    x = 71,468.36

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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.