Home / 160,816.08-221,853.42-100,401.70

Finding the Fourth Proportional to 160,816.08, 221,853.42 and 100,401.70

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Solution

The fourth proportional to 160,816.08, 221,853.42 and 100,401.70 is: 138,508.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,816.08 : 221,853.42 = 100,401.70 : x
  2. Step 2: Convert to fraction form
    160,816.08/221,853.42 = 100,401.70/x
  3. Step 3: Cross multiply
    160,816.08x = 221,853.42 × 100,401.70
  4. Step 4: Simplify right side
    160,816.08x = 22,274,460,518.81
  5. Step 5: Solve for x
    x = 22,274,460,518.81/160,816.08
  6. Step 6: Final answer
    x = 138,508.91

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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.