Home / 136,478.15-188,345.62-76,048.82

Finding the Fourth Proportional to 136,478.15, 188,345.62 and 76,048.82

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Solution

The fourth proportional to 136,478.15, 188,345.62 and 76,048.82 is: 104,950.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,478.15 : 188,345.62 = 76,048.82 : x
  2. Step 2: Convert to fraction form
    136,478.15/188,345.62 = 76,048.82/x
  3. Step 3: Cross multiply
    136,478.15x = 188,345.62 × 76,048.82
  4. Step 4: Simplify right side
    136,478.15x = 14,323,462,153.17
  5. Step 5: Solve for x
    x = 14,323,462,153.17/136,478.15
  6. Step 6: Final answer
    x = 104,950.59

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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.