Home / 147,628.20-221,442.30-143,740.20

Finding the Fourth Proportional to 147,628.20, 221,442.30 and 143,740.20

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Solution

The fourth proportional to 147,628.20, 221,442.30 and 143,740.20 is: 215,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,628.20 : 221,442.30 = 143,740.20 : x
  2. Step 2: Convert to fraction form
    147,628.20/221,442.30 = 143,740.20/x
  3. Step 3: Cross multiply
    147,628.20x = 221,442.30 × 143,740.20
  4. Step 4: Simplify right side
    147,628.20x = 31,830,160,490.46
  5. Step 5: Solve for x
    x = 31,830,160,490.46/147,628.20
  6. Step 6: Final answer
    x = 215,610.30

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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.