Home / 155,615.13-233,238.15-139,745.70

Finding the Fourth Proportional to 155,615.13, 233,238.15 and 139,745.70

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Solution

The fourth proportional to 155,615.13, 233,238.15 and 139,745.70 is: 209,452.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,615.13 : 233,238.15 = 139,745.70 : x
  2. Step 2: Convert to fraction form
    155,615.13/233,238.15 = 139,745.70/x
  3. Step 3: Cross multiply
    155,615.13x = 233,238.15 × 139,745.70
  4. Step 4: Simplify right side
    155,615.13x = 32,594,028,538.46
  5. Step 5: Solve for x
    x = 32,594,028,538.46/155,615.13
  6. Step 6: Final answer
    x = 209,452.82

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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.