Home / 106,312.68-159,421.23-31,406.72

Finding the Fourth Proportional to 106,312.68, 159,421.23 and 31,406.72

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Solution

The fourth proportional to 106,312.68, 159,421.23 and 31,406.72 is: 47,095.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,312.68 : 159,421.23 = 31,406.72 : x
  2. Step 2: Convert to fraction form
    106,312.68/159,421.23 = 31,406.72/x
  3. Step 3: Cross multiply
    106,312.68x = 159,421.23 × 31,406.72
  4. Step 4: Simplify right side
    106,312.68x = 5,006,897,135.56
  5. Step 5: Solve for x
    x = 5,006,897,135.56/106,312.68
  6. Step 6: Final answer
    x = 47,095.95

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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.