Home / 112,405.30-155,117.49-61,416.94

Finding the Fourth Proportional to 112,405.30, 155,117.49 and 61,416.94

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Solution

The fourth proportional to 112,405.30, 155,117.49 and 61,416.94 is: 84,754.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,405.30 : 155,117.49 = 61,416.94 : x
  2. Step 2: Convert to fraction form
    112,405.30/155,117.49 = 61,416.94/x
  3. Step 3: Cross multiply
    112,405.30x = 155,117.49 × 61,416.94
  4. Step 4: Simplify right side
    112,405.30x = 9,526,841,576.28
  5. Step 5: Solve for x
    x = 9,526,841,576.28/112,405.30
  6. Step 6: Final answer
    x = 84,754.38

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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.