Home / 112,790.14-155,651.93-61,801.85

Finding the Fourth Proportional to 112,790.14, 155,651.93 and 61,801.85

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Solution

The fourth proportional to 112,790.14, 155,651.93 and 61,801.85 is: 85,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,790.14 : 155,651.93 = 61,801.85 : x
  2. Step 2: Convert to fraction form
    112,790.14/155,651.93 = 61,801.85/x
  3. Step 3: Cross multiply
    112,790.14x = 155,651.93 × 61,801.85
  4. Step 4: Simplify right side
    112,790.14x = 9,619,577,541.95
  5. Step 5: Solve for x
    x = 9,619,577,541.95/112,790.14
  6. Step 6: Final answer
    x = 85,287.40

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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.