Home / 120,841.81-181,281.15-61,645.18

Finding the Fourth Proportional to 120,841.81, 181,281.15 and 61,645.18

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Solution

The fourth proportional to 120,841.81, 181,281.15 and 61,645.18 is: 92,477.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,841.81 : 181,281.15 = 61,645.18 : x
  2. Step 2: Convert to fraction form
    120,841.81/181,281.15 = 61,645.18/x
  3. Step 3: Cross multiply
    120,841.81x = 181,281.15 × 61,645.18
  4. Step 4: Simplify right side
    120,841.81x = 11,175,109,122.36
  5. Step 5: Solve for x
    x = 11,175,109,122.36/120,841.81
  6. Step 6: Final answer
    x = 92,477.17

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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.