Home / 150,555.32-207,707-86,880.80

Finding the Fourth Proportional to 150,555.32, 207,707 and 86,880.80

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Solution

The fourth proportional to 150,555.32, 207,707 and 86,880.80 is: 119,861.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,555.32 : 207,707 = 86,880.80 : x
  2. Step 2: Convert to fraction form
    150,555.32/207,707 = 86,880.80/x
  3. Step 3: Cross multiply
    150,555.32x = 207,707 × 86,880.80
  4. Step 4: Simplify right side
    150,555.32x = 18,045,750,325.60
  5. Step 5: Solve for x
    x = 18,045,750,325.60/150,555.32
  6. Step 6: Final answer
    x = 119,861.26

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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.