Home / 124,412.35-171,686.23-76,664.11

Finding the Fourth Proportional to 124,412.35, 171,686.23 and 76,664.11

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Solution

The fourth proportional to 124,412.35, 171,686.23 and 76,664.11 is: 105,794.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,412.35 : 171,686.23 = 76,664.11 : x
  2. Step 2: Convert to fraction form
    124,412.35/171,686.23 = 76,664.11/x
  3. Step 3: Cross multiply
    124,412.35x = 171,686.23 × 76,664.11
  4. Step 4: Simplify right side
    124,412.35x = 13,162,172,022.21
  5. Step 5: Solve for x
    x = 13,162,172,022.21/124,412.35
  6. Step 6: Final answer
    x = 105,794.74

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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.