Home / 152,331.20-210,219.27-87,764.81

Finding the Fourth Proportional to 152,331.20, 210,219.27 and 87,764.81

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Solution

The fourth proportional to 152,331.20, 210,219.27 and 87,764.81 is: 121,116.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,331.20 : 210,219.27 = 87,764.81 : x
  2. Step 2: Convert to fraction form
    152,331.20/210,219.27 = 87,764.81/x
  3. Step 3: Cross multiply
    152,331.20x = 210,219.27 × 87,764.81
  4. Step 4: Simplify right side
    152,331.20x = 18,449,853,238.79
  5. Step 5: Solve for x
    x = 18,449,853,238.79/152,331.20
  6. Step 6: Final answer
    x = 121,116.71

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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.