Home / 161,400.60-222,417.90-159,432.30

Finding the Fourth Proportional to 161,400.60, 222,417.90 and 159,432.30

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Solution

The fourth proportional to 161,400.60, 222,417.90 and 159,432.30 is: 219,705.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,400.60 : 222,417.90 = 159,432.30 : x
  2. Step 2: Convert to fraction form
    161,400.60/222,417.90 = 159,432.30/x
  3. Step 3: Cross multiply
    161,400.60x = 222,417.90 × 159,432.30
  4. Step 4: Simplify right side
    161,400.60x = 35,460,597,358.17
  5. Step 5: Solve for x
    x = 35,460,597,358.17/161,400.60
  6. Step 6: Final answer
    x = 219,705.49

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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.