Home / 161,139.84-241,626.72-72,317.16

Finding the Fourth Proportional to 161,139.84, 241,626.72 and 72,317.16

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Solution

The fourth proportional to 161,139.84, 241,626.72 and 72,317.16 is: 108,438.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,139.84 : 241,626.72 = 72,317.16 : x
  2. Step 2: Convert to fraction form
    161,139.84/241,626.72 = 72,317.16/x
  3. Step 3: Cross multiply
    161,139.84x = 241,626.72 × 72,317.16
  4. Step 4: Simplify right side
    161,139.84x = 17,473,758,170.52
  5. Step 5: Solve for x
    x = 17,473,758,170.52/161,139.84
  6. Step 6: Final answer
    x = 108,438.47

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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.