Home / 136,257.46-188,068.66-105,569.84

Finding the Fourth Proportional to 136,257.46, 188,068.66 and 105,569.84

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Solution

The fourth proportional to 136,257.46, 188,068.66 and 105,569.84 is: 145,712.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,257.46 : 188,068.66 = 105,569.84 : x
  2. Step 2: Convert to fraction form
    136,257.46/188,068.66 = 105,569.84/x
  3. Step 3: Cross multiply
    136,257.46x = 188,068.66 × 105,569.84
  4. Step 4: Simplify right side
    136,257.46x = 19,854,378,345.21
  5. Step 5: Solve for x
    x = 19,854,378,345.21/136,257.46
  6. Step 6: Final answer
    x = 145,712.23

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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.