Home / 147,515.10-221,272.65-100,859.10

Finding the Fourth Proportional to 147,515.10, 221,272.65 and 100,859.10

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Solution

The fourth proportional to 147,515.10, 221,272.65 and 100,859.10 is: 151,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,515.10 : 221,272.65 = 100,859.10 : x
  2. Step 2: Convert to fraction form
    147,515.10/221,272.65 = 100,859.10/x
  3. Step 3: Cross multiply
    147,515.10x = 221,272.65 × 100,859.10
  4. Step 4: Simplify right side
    147,515.10x = 22,317,360,333.62
  5. Step 5: Solve for x
    x = 22,317,360,333.62/147,515.10
  6. Step 6: Final answer
    x = 151,288.65

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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.