Home / 158,845.40-219,210.36-87,221.24

Finding the Fourth Proportional to 158,845.40, 219,210.36 and 87,221.24

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Solution

The fourth proportional to 158,845.40, 219,210.36 and 87,221.24 is: 120,367.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,845.40 : 219,210.36 = 87,221.24 : x
  2. Step 2: Convert to fraction form
    158,845.40/219,210.36 = 87,221.24/x
  3. Step 3: Cross multiply
    158,845.40x = 219,210.36 × 87,221.24
  4. Step 4: Simplify right side
    158,845.40x = 19,119,799,420.05
  5. Step 5: Solve for x
    x = 19,119,799,420.05/158,845.40
  6. Step 6: Final answer
    x = 120,367.35

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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.