Home / 152,584.74-210,544.20-87,168.78

Finding the Fourth Proportional to 152,584.74, 210,544.20 and 87,168.78

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Solution

The fourth proportional to 152,584.74, 210,544.20 and 87,168.78 is: 120,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,584.74 : 210,544.20 = 87,168.78 : x
  2. Step 2: Convert to fraction form
    152,584.74/210,544.20 = 87,168.78/x
  3. Step 3: Cross multiply
    152,584.74x = 210,544.20 × 87,168.78
  4. Step 4: Simplify right side
    152,584.74x = 18,352,881,050.08
  5. Step 5: Solve for x
    x = 18,352,881,050.08/152,584.74
  6. Step 6: Final answer
    x = 120,279.92

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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.