Home / 160,778.70-221,875.20-89,165.34

Finding the Fourth Proportional to 160,778.70, 221,875.20 and 89,165.34

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Solution

The fourth proportional to 160,778.70, 221,875.20 and 89,165.34 is: 123,048.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,778.70 : 221,875.20 = 89,165.34 : x
  2. Step 2: Convert to fraction form
    160,778.70/221,875.20 = 89,165.34/x
  3. Step 3: Cross multiply
    160,778.70x = 221,875.20 × 89,165.34
  4. Step 4: Simplify right side
    160,778.70x = 19,783,577,645.57
  5. Step 5: Solve for x
    x = 19,783,577,645.57/160,778.70
  6. Step 6: Final answer
    x = 123,048.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.