Home / 75,150.74-103,907.40-65,692.16

Finding the Fourth Proportional to 75,150.74, 103,907.40 and 65,692.16

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Solution

The fourth proportional to 75,150.74, 103,907.40 and 65,692.16 is: 90,829.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,150.74 : 103,907.40 = 65,692.16 : x
  2. Step 2: Convert to fraction form
    75,150.74/103,907.40 = 65,692.16/x
  3. Step 3: Cross multiply
    75,150.74x = 103,907.40 × 65,692.16
  4. Step 4: Simplify right side
    75,150.74x = 6,825,901,805.75
  5. Step 5: Solve for x
    x = 6,825,901,805.75/75,150.74
  6. Step 6: Final answer
    x = 90,829.47

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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.