Home / 102,904.65-142,015.01-57,587.85

Finding the Fourth Proportional to 102,904.65, 142,015.01 and 57,587.85

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Solution

The fourth proportional to 102,904.65, 142,015.01 and 57,587.85 is: 79,474.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,904.65 : 142,015.01 = 57,587.85 : x
  2. Step 2: Convert to fraction form
    102,904.65/142,015.01 = 57,587.85/x
  3. Step 3: Cross multiply
    102,904.65x = 142,015.01 × 57,587.85
  4. Step 4: Simplify right side
    102,904.65x = 8,178,338,805.69
  5. Step 5: Solve for x
    x = 8,178,338,805.69/102,904.65
  6. Step 6: Final answer
    x = 79,474.92

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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.