Home / 108,603.17-149,872.37-66,161.67

Finding the Fourth Proportional to 108,603.17, 149,872.37 and 66,161.67

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Solution

The fourth proportional to 108,603.17, 149,872.37 and 66,161.67 is: 91,303.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,603.17 : 149,872.37 = 66,161.67 : x
  2. Step 2: Convert to fraction form
    108,603.17/149,872.37 = 66,161.67/x
  3. Step 3: Cross multiply
    108,603.17x = 149,872.37 × 66,161.67
  4. Step 4: Simplify right side
    108,603.17x = 9,915,806,286.06
  5. Step 5: Solve for x
    x = 9,915,806,286.06/108,603.17
  6. Step 6: Final answer
    x = 91,303.10

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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.