Home / 105,478.75-158,244.05-31,606.75

Finding the Fourth Proportional to 105,478.75, 158,244.05 and 31,606.75

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Solution

The fourth proportional to 105,478.75, 158,244.05 and 31,606.75 is: 47,417.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,478.75 : 158,244.05 = 31,606.75 : x
  2. Step 2: Convert to fraction form
    105,478.75/158,244.05 = 31,606.75/x
  3. Step 3: Cross multiply
    105,478.75x = 158,244.05 × 31,606.75
  4. Step 4: Simplify right side
    105,478.75x = 5,001,580,127.34
  5. Step 5: Solve for x
    x = 5,001,580,127.34/105,478.75
  6. Step 6: Final answer
    x = 47,417.89

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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.