Home / 115,503.95-159,393.75-64,517.39

Finding the Fourth Proportional to 115,503.95, 159,393.75 and 64,517.39

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Solution

The fourth proportional to 115,503.95, 159,393.75 and 64,517.39 is: 89,033.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,503.95 : 159,393.75 = 64,517.39 : x
  2. Step 2: Convert to fraction form
    115,503.95/159,393.75 = 64,517.39/x
  3. Step 3: Cross multiply
    115,503.95x = 159,393.75 × 64,517.39
  4. Step 4: Simplify right side
    115,503.95x = 10,283,668,732.31
  5. Step 5: Solve for x
    x = 10,283,668,732.31/115,503.95
  6. Step 6: Final answer
    x = 89,033.05

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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.