Home / 147,905.10-221,857.65-42,734.70

Finding the Fourth Proportional to 147,905.10, 221,857.65 and 42,734.70

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Solution

The fourth proportional to 147,905.10, 221,857.65 and 42,734.70 is: 64,102.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,905.10 : 221,857.65 = 42,734.70 : x
  2. Step 2: Convert to fraction form
    147,905.10/221,857.65 = 42,734.70/x
  3. Step 3: Cross multiply
    147,905.10x = 221,857.65 × 42,734.70
  4. Step 4: Simplify right side
    147,905.10x = 9,481,020,115.46
  5. Step 5: Solve for x
    x = 9,481,020,115.46/147,905.10
  6. Step 6: Final answer
    x = 64,102.05

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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.