Home / 105,478.11-158,197.01-31,606.11

Finding the Fourth Proportional to 105,478.11, 158,197.01 and 31,606.11

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Solution

The fourth proportional to 105,478.11, 158,197.01 and 31,606.11 is: 47,403.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,478.11 : 158,197.01 = 31,606.11 : x
  2. Step 2: Convert to fraction form
    105,478.11/158,197.01 = 31,606.11/x
  3. Step 3: Cross multiply
    105,478.11x = 158,197.01 × 31,606.11
  4. Step 4: Simplify right side
    105,478.11x = 4,999,991,941.70
  5. Step 5: Solve for x
    x = 4,999,991,941.70/105,478.11
  6. Step 6: Final answer
    x = 47,403.12

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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.