Home / 100,673.04-138,871.40-62,415.12

Finding the Fourth Proportional to 100,673.04, 138,871.40 and 62,415.12

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Solution

The fourth proportional to 100,673.04, 138,871.40 and 62,415.12 is: 86,097.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,673.04 : 138,871.40 = 62,415.12 : x
  2. Step 2: Convert to fraction form
    100,673.04/138,871.40 = 62,415.12/x
  3. Step 3: Cross multiply
    100,673.04x = 138,871.40 × 62,415.12
  4. Step 4: Simplify right side
    100,673.04x = 8,667,675,095.57
  5. Step 5: Solve for x
    x = 8,667,675,095.57/100,673.04
  6. Step 6: Final answer
    x = 86,097.28

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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.