Home / 147,622.80-221,398.20-42,430.80

Finding the Fourth Proportional to 147,622.80, 221,398.20 and 42,430.80

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Solution

The fourth proportional to 147,622.80, 221,398.20 and 42,430.80 is: 63,635.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,622.80 : 221,398.20 = 42,430.80 : x
  2. Step 2: Convert to fraction form
    147,622.80/221,398.20 = 42,430.80/x
  3. Step 3: Cross multiply
    147,622.80x = 221,398.20 × 42,430.80
  4. Step 4: Simplify right side
    147,622.80x = 9,394,102,744.56
  5. Step 5: Solve for x
    x = 9,394,102,744.56/147,622.80
  6. Step 6: Final answer
    x = 63,635.85

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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.