Home / 147,820.30-221,708.85-42,628.30

Finding the Fourth Proportional to 147,820.30, 221,708.85 and 42,628.30

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Solution

The fourth proportional to 147,820.30, 221,708.85 and 42,628.30 is: 63,936.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,820.30 : 221,708.85 = 42,628.30 : x
  2. Step 2: Convert to fraction form
    147,820.30/221,708.85 = 42,628.30/x
  3. Step 3: Cross multiply
    147,820.30x = 221,708.85 × 42,628.30
  4. Step 4: Simplify right side
    147,820.30x = 9,451,071,370.46
  5. Step 5: Solve for x
    x = 9,451,071,370.46/147,820.30
  6. Step 6: Final answer
    x = 63,936.22

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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.