Home / 102,681.68-154,037.09-31,610.23

Finding the Fourth Proportional to 102,681.68, 154,037.09 and 31,610.23

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Solution

The fourth proportional to 102,681.68, 154,037.09 and 31,610.23 is: 47,419.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,681.68 : 154,037.09 = 31,610.23 : x
  2. Step 2: Convert to fraction form
    102,681.68/154,037.09 = 31,610.23/x
  3. Step 3: Cross multiply
    102,681.68x = 154,037.09 × 31,610.23
  4. Step 4: Simplify right side
    102,681.68x = 4,869,147,537.36
  5. Step 5: Solve for x
    x = 4,869,147,537.36/102,681.68
  6. Step 6: Final answer
    x = 47,419.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.