Home / 159,523.80-220,152.51-87,903.75

Finding the Fourth Proportional to 159,523.80, 220,152.51 and 87,903.75

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Solution

The fourth proportional to 159,523.80, 220,152.51 and 87,903.75 is: 121,312.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,523.80 : 220,152.51 = 87,903.75 : x
  2. Step 2: Convert to fraction form
    159,523.80/220,152.51 = 87,903.75/x
  3. Step 3: Cross multiply
    159,523.80x = 220,152.51 × 87,903.75
  4. Step 4: Simplify right side
    159,523.80x = 19,352,231,200.91
  5. Step 5: Solve for x
    x = 19,352,231,200.91/159,523.80
  6. Step 6: Final answer
    x = 121,312.50

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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.