Home / 100,069.02-138,095.28-57,626.64

Finding the Fourth Proportional to 100,069.02, 138,095.28 and 57,626.64

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Solution

The fourth proportional to 100,069.02, 138,095.28 and 57,626.64 is: 79,524.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,069.02 : 138,095.28 = 57,626.64 : x
  2. Step 2: Convert to fraction form
    100,069.02/138,095.28 = 57,626.64/x
  3. Step 3: Cross multiply
    100,069.02x = 138,095.28 × 57,626.64
  4. Step 4: Simplify right side
    100,069.02x = 7,957,966,986.26
  5. Step 5: Solve for x
    x = 7,957,966,986.26/100,069.02
  6. Step 6: Final answer
    x = 79,524.78

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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.