Home / 152,329.70-210,217.20-87,763.31

Finding the Fourth Proportional to 152,329.70, 210,217.20 and 87,763.31

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Solution

The fourth proportional to 152,329.70, 210,217.20 and 87,763.31 is: 121,114.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,329.70 : 210,217.20 = 87,763.31 : x
  2. Step 2: Convert to fraction form
    152,329.70/210,217.20 = 87,763.31/x
  3. Step 3: Cross multiply
    152,329.70x = 210,217.20 × 87,763.31
  4. Step 4: Simplify right side
    152,329.70x = 18,449,356,239.85
  5. Step 5: Solve for x
    x = 18,449,356,239.85/152,329.70
  6. Step 6: Final answer
    x = 121,114.64

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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.