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Finding the Fourth Proportional to 112,833.88, 155,704.58 and 61,837.40

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Solution

The fourth proportional to 112,833.88, 155,704.58 and 61,837.40 is: 85,332.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,833.88 : 155,704.58 = 61,837.40 : x
  2. Step 2: Convert to fraction form
    112,833.88/155,704.58 = 61,837.40/x
  3. Step 3: Cross multiply
    112,833.88x = 155,704.58 × 61,837.40
  4. Step 4: Simplify right side
    112,833.88x = 9,628,366,395.29
  5. Step 5: Solve for x
    x = 9,628,366,395.29/112,833.88
  6. Step 6: Final answer
    x = 85,332.23

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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.