Home / 120,071.17-165,684.06-66,352.98

Finding the Fourth Proportional to 120,071.17, 165,684.06 and 66,352.98

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Solution

The fourth proportional to 120,071.17, 165,684.06 and 66,352.98 is: 91,559.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,071.17 : 165,684.06 = 66,352.98 : x
  2. Step 2: Convert to fraction form
    120,071.17/165,684.06 = 66,352.98/x
  3. Step 3: Cross multiply
    120,071.17x = 165,684.06 × 66,352.98
  4. Step 4: Simplify right side
    120,071.17x = 10,993,631,119.50
  5. Step 5: Solve for x
    x = 10,993,631,119.50/120,071.17
  6. Step 6: Final answer
    x = 91,559.29

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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.