Home / 147,820.10-221,730.15-136,415.30

Finding the Fourth Proportional to 147,820.10, 221,730.15 and 136,415.30

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Solution

The fourth proportional to 147,820.10, 221,730.15 and 136,415.30 is: 204,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,820.10 : 221,730.15 = 136,415.30 : x
  2. Step 2: Convert to fraction form
    147,820.10/221,730.15 = 136,415.30/x
  3. Step 3: Cross multiply
    147,820.10x = 221,730.15 × 136,415.30
  4. Step 4: Simplify right side
    147,820.10x = 30,247,384,931.30
  5. Step 5: Solve for x
    x = 30,247,384,931.30/147,820.10
  6. Step 6: Final answer
    x = 204,622.95

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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.