Home / 106,278.19-159,379.71-31,378.30

Finding the Fourth Proportional to 106,278.19, 159,379.71 and 31,378.30

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Solution

The fourth proportional to 106,278.19, 159,379.71 and 31,378.30 is: 47,056.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,278.19 : 159,379.71 = 31,378.30 : x
  2. Step 2: Convert to fraction form
    106,278.19/159,379.71 = 31,378.30/x
  3. Step 3: Cross multiply
    106,278.19x = 159,379.71 × 31,378.30
  4. Step 4: Simplify right side
    106,278.19x = 5,001,064,354.29
  5. Step 5: Solve for x
    x = 5,001,064,354.29/106,278.19
  6. Step 6: Final answer
    x = 47,056.36

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1.5x scale

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.