Home / 112,368.74-155,067.27-61,380.86

Finding the Fourth Proportional to 112,368.74, 155,067.27 and 61,380.86

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Solution

The fourth proportional to 112,368.74, 155,067.27 and 61,380.86 is: 84,704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,368.74 : 155,067.27 = 61,380.86 : x
  2. Step 2: Convert to fraction form
    112,368.74/155,067.27 = 61,380.86/x
  3. Step 3: Cross multiply
    112,368.74x = 155,067.27 × 61,380.86
  4. Step 4: Simplify right side
    112,368.74x = 9,518,161,615.12
  5. Step 5: Solve for x
    x = 9,518,161,615.12/112,368.74
  6. Step 6: Final answer
    x = 84,704.71

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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.