Home / 115,419.48-159,283.02-67,017.78

Finding the Fourth Proportional to 115,419.48, 159,283.02 and 67,017.78

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Solution

The fourth proportional to 115,419.48, 159,283.02 and 67,017.78 is: 92,486.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,419.48 : 159,283.02 = 67,017.78 : x
  2. Step 2: Convert to fraction form
    115,419.48/159,283.02 = 67,017.78/x
  3. Step 3: Cross multiply
    115,419.48x = 159,283.02 × 67,017.78
  4. Step 4: Simplify right side
    115,419.48x = 10,674,794,392.10
  5. Step 5: Solve for x
    x = 10,674,794,392.10/115,419.48
  6. Step 6: Final answer
    x = 92,486.94

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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.