Home / 99,075.64-136,724.39-56,635.08

Finding the Fourth Proportional to 99,075.64, 136,724.39 and 56,635.08

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Solution

The fourth proportional to 99,075.64, 136,724.39 and 56,635.08 is: 78,156.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,075.64 : 136,724.39 = 56,635.08 : x
  2. Step 2: Convert to fraction form
    99,075.64/136,724.39 = 56,635.08/x
  3. Step 3: Cross multiply
    99,075.64x = 136,724.39 × 56,635.08
  4. Step 4: Simplify right side
    99,075.64x = 7,743,396,765.60
  5. Step 5: Solve for x
    x = 7,743,396,765.60/99,075.64
  6. Step 6: Final answer
    x = 78,156.41

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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.