Home / 106,515.23-159,148.89-102,790.15

Finding the Fourth Proportional to 106,515.23, 159,148.89 and 102,790.15

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Solution

The fourth proportional to 106,515.23, 159,148.89 and 102,790.15 is: 153,583.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,515.23 : 159,148.89 = 102,790.15 : x
  2. Step 2: Convert to fraction form
    106,515.23/159,148.89 = 102,790.15/x
  3. Step 3: Cross multiply
    106,515.23x = 159,148.89 × 102,790.15
  4. Step 4: Simplify right side
    106,515.23x = 16,358,937,877.56
  5. Step 5: Solve for x
    x = 16,358,937,877.56/106,515.23
  6. Step 6: Final answer
    x = 153,583.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.