Home / 147,620.10-221,430.15-136,215.30

Finding the Fourth Proportional to 147,620.10, 221,430.15 and 136,215.30

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Solution

The fourth proportional to 147,620.10, 221,430.15 and 136,215.30 is: 204,322.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,620.10 : 221,430.15 = 136,215.30 : x
  2. Step 2: Convert to fraction form
    147,620.10/221,430.15 = 136,215.30/x
  3. Step 3: Cross multiply
    147,620.10x = 221,430.15 × 136,215.30
  4. Step 4: Simplify right side
    147,620.10x = 30,162,174,311.30
  5. Step 5: Solve for x
    x = 30,162,174,311.30/147,620.10
  6. Step 6: Final answer
    x = 204,322.95

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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.