Home / 107,838.76-148,815.47-58,780.77

Finding the Fourth Proportional to 107,838.76, 148,815.47 and 58,780.77

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Solution

The fourth proportional to 107,838.76, 148,815.47 and 58,780.77 is: 81,116.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,838.76 : 148,815.47 = 58,780.77 : x
  2. Step 2: Convert to fraction form
    107,838.76/148,815.47 = 58,780.77/x
  3. Step 3: Cross multiply
    107,838.76x = 148,815.47 × 58,780.77
  4. Step 4: Simplify right side
    107,838.76x = 8,747,487,914.51
  5. Step 5: Solve for x
    x = 8,747,487,914.51/107,838.76
  6. Step 6: Final answer
    x = 81,116.36

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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.