Home / 155,343.27-214,371.67-87,360.23

Finding the Fourth Proportional to 155,343.27, 214,371.67 and 87,360.23

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Solution

The fourth proportional to 155,343.27, 214,371.67 and 87,360.23 is: 120,555.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,343.27 : 214,371.67 = 87,360.23 : x
  2. Step 2: Convert to fraction form
    155,343.27/214,371.67 = 87,360.23/x
  3. Step 3: Cross multiply
    155,343.27x = 214,371.67 × 87,360.23
  4. Step 4: Simplify right side
    155,343.27x = 18,727,556,888.02
  5. Step 5: Solve for x
    x = 18,727,556,888.02/155,343.27
  6. Step 6: Final answer
    x = 120,555.96

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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.