Home / 158,861.52-219,228.80-87,246.05

Finding the Fourth Proportional to 158,861.52, 219,228.80 and 87,246.05

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Solution

The fourth proportional to 158,861.52, 219,228.80 and 87,246.05 is: 120,399.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,861.52 : 219,228.80 = 87,246.05 : x
  2. Step 2: Convert to fraction form
    158,861.52/219,228.80 = 87,246.05/x
  3. Step 3: Cross multiply
    158,861.52x = 219,228.80 × 87,246.05
  4. Step 4: Simplify right side
    158,861.52x = 19,126,845,313.87
  5. Step 5: Solve for x
    x = 19,126,845,313.87/158,861.52
  6. Step 6: Final answer
    x = 120,399.49

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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.