Home / 162,210.08-243,258.76-90,272.76

Finding the Fourth Proportional to 162,210.08, 243,258.76 and 90,272.76

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Solution

The fourth proportional to 162,210.08, 243,258.76 and 90,272.76 is: 135,377.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,210.08 : 243,258.76 = 90,272.76 : x
  2. Step 2: Convert to fraction form
    162,210.08/243,258.76 = 90,272.76/x
  3. Step 3: Cross multiply
    162,210.08x = 243,258.76 × 90,272.76
  4. Step 4: Simplify right side
    162,210.08x = 21,959,640,228.33
  5. Step 5: Solve for x
    x = 21,959,640,228.33/162,210.08
  6. Step 6: Final answer
    x = 135,377.78

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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.