Home / 103,095.30-142,281.51-57,780.96

Finding the Fourth Proportional to 103,095.30, 142,281.51 and 57,780.96

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Solution

The fourth proportional to 103,095.30, 142,281.51 and 57,780.96 is: 79,743.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,095.30 : 142,281.51 = 57,780.96 : x
  2. Step 2: Convert to fraction form
    103,095.30/142,281.51 = 57,780.96/x
  3. Step 3: Cross multiply
    103,095.30x = 142,281.51 × 57,780.96
  4. Step 4: Simplify right side
    103,095.30x = 8,221,162,238.05
  5. Step 5: Solve for x
    x = 8,221,162,238.05/103,095.30
  6. Step 6: Final answer
    x = 79,743.33

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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.