Home / 105,660.58-145,815.18-57,913.93

Finding the Fourth Proportional to 105,660.58, 145,815.18 and 57,913.93

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Solution

The fourth proportional to 105,660.58, 145,815.18 and 57,913.93 is: 79,923.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,660.58 : 145,815.18 = 57,913.93 : x
  2. Step 2: Convert to fraction form
    105,660.58/145,815.18 = 57,913.93/x
  3. Step 3: Cross multiply
    105,660.58x = 145,815.18 × 57,913.93
  4. Step 4: Simplify right side
    105,660.58x = 8,444,730,127.46
  5. Step 5: Solve for x
    x = 8,444,730,127.46/105,660.58
  6. Step 6: Final answer
    x = 79,923.19

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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.