Home / 212,322.50-318,532.96-72,081.13

Finding the Fourth Proportional to 212,322.50, 318,532.96 and 72,081.13

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Solution

The fourth proportional to 212,322.50, 318,532.96 and 72,081.13 is: 108,138.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,322.50 : 318,532.96 = 72,081.13 : x
  2. Step 2: Convert to fraction form
    212,322.50/318,532.96 = 72,081.13/x
  3. Step 3: Cross multiply
    212,322.50x = 318,532.96 × 72,081.13
  4. Step 4: Simplify right side
    212,322.50x = 22,960,214,106.38
  5. Step 5: Solve for x
    x = 22,960,214,106.38/212,322.50
  6. Step 6: Final answer
    x = 108,138.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.