Home / 155,880.12-215,128.62-88,833.72

Finding the Fourth Proportional to 155,880.12, 215,128.62 and 88,833.72

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Solution

The fourth proportional to 155,880.12, 215,128.62 and 88,833.72 is: 122,598.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,880.12 : 215,128.62 = 88,833.72 : x
  2. Step 2: Convert to fraction form
    155,880.12/215,128.62 = 88,833.72/x
  3. Step 3: Cross multiply
    155,880.12x = 215,128.62 × 88,833.72
  4. Step 4: Simplify right side
    155,880.12x = 19,110,675,593.07
  5. Step 5: Solve for x
    x = 19,110,675,593.07/155,880.12
  6. Step 6: Final answer
    x = 122,598.54

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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.