Home / 105,417.41-158,188.49-38,903.86

Finding the Fourth Proportional to 105,417.41, 158,188.49 and 38,903.86

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Solution

The fourth proportional to 105,417.41, 158,188.49 and 38,903.86 is: 58,378.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,417.41 : 158,188.49 = 38,903.86 : x
  2. Step 2: Convert to fraction form
    105,417.41/158,188.49 = 38,903.86/x
  3. Step 3: Cross multiply
    105,417.41x = 158,188.49 × 38,903.86
  4. Step 4: Simplify right side
    105,417.41x = 6,154,142,868.57
  5. Step 5: Solve for x
    x = 6,154,142,868.57/105,417.41
  6. Step 6: Final answer
    x = 58,378.81

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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.