Home / 106,538.95-159,808.43-66,881.35

Finding the Fourth Proportional to 106,538.95, 159,808.43 and 66,881.35

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Solution

The fourth proportional to 106,538.95, 159,808.43 and 66,881.35 is: 100,322.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,538.95 : 159,808.43 = 66,881.35 : x
  2. Step 2: Convert to fraction form
    106,538.95/159,808.43 = 66,881.35/x
  3. Step 3: Cross multiply
    106,538.95x = 159,808.43 × 66,881.35
  4. Step 4: Simplify right side
    106,538.95x = 10,688,203,205.37
  5. Step 5: Solve for x
    x = 10,688,203,205.37/106,538.95
  6. Step 6: Final answer
    x = 100,322.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.