Home / 136,472.15-188,329.05-76,041.50

Finding the Fourth Proportional to 136,472.15, 188,329.05 and 76,041.50

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Solution

The fourth proportional to 136,472.15, 188,329.05 and 76,041.50 is: 104,935.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,472.15 : 188,329.05 = 76,041.50 : x
  2. Step 2: Convert to fraction form
    136,472.15/188,329.05 = 76,041.50/x
  3. Step 3: Cross multiply
    136,472.15x = 188,329.05 × 76,041.50
  4. Step 4: Simplify right side
    136,472.15x = 14,320,822,513.93
  5. Step 5: Solve for x
    x = 14,320,822,513.93/136,472.15
  6. Step 6: Final answer
    x = 104,935.86

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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.