Home / 112,694.61-155,511.70-61,707.95

Finding the Fourth Proportional to 112,694.61, 155,511.70 and 61,707.95

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Solution

The fourth proportional to 112,694.61, 155,511.70 and 61,707.95 is: 85,153.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,694.61 : 155,511.70 = 61,707.95 : x
  2. Step 2: Convert to fraction form
    112,694.61/155,511.70 = 61,707.95/x
  3. Step 3: Cross multiply
    112,694.61x = 155,511.70 × 61,707.95
  4. Step 4: Simplify right side
    112,694.61x = 9,596,308,687.23
  5. Step 5: Solve for x
    x = 9,596,308,687.23/112,694.61
  6. Step 6: Final answer
    x = 85,153.22

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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.