Home / 106,281.90-159,440.04-31,409.55

Finding the Fourth Proportional to 106,281.90, 159,440.04 and 31,409.55

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Solution

The fourth proportional to 106,281.90, 159,440.04 and 31,409.55 is: 47,119.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,281.90 : 159,440.04 = 31,409.55 : x
  2. Step 2: Convert to fraction form
    106,281.90/159,440.04 = 31,409.55/x
  3. Step 3: Cross multiply
    106,281.90x = 159,440.04 × 31,409.55
  4. Step 4: Simplify right side
    106,281.90x = 5,007,939,908.38
  5. Step 5: Solve for x
    x = 5,007,939,908.38/106,281.90
  6. Step 6: Final answer
    x = 47,119.41

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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.