Home / 105,869.54-158,703.23-39,291.86

Finding the Fourth Proportional to 105,869.54, 158,703.23 and 39,291.86

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Solution

The fourth proportional to 105,869.54, 158,703.23 and 39,291.86 is: 58,900.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,869.54 : 158,703.23 = 39,291.86 : x
  2. Step 2: Convert to fraction form
    105,869.54/158,703.23 = 39,291.86/x
  3. Step 3: Cross multiply
    105,869.54x = 158,703.23 × 39,291.86
  4. Step 4: Simplify right side
    105,869.54x = 6,235,745,094.71
  5. Step 5: Solve for x
    x = 6,235,745,094.71/105,869.54
  6. Step 6: Final answer
    x = 58,900.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.