Home / 106,887.65-147,440.69-70,589.43

Finding the Fourth Proportional to 106,887.65, 147,440.69 and 70,589.43

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Solution

The fourth proportional to 106,887.65, 147,440.69 and 70,589.43 is: 97,370.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,887.65 : 147,440.69 = 70,589.43 : x
  2. Step 2: Convert to fraction form
    106,887.65/147,440.69 = 70,589.43/x
  3. Step 3: Cross multiply
    106,887.65x = 147,440.69 × 70,589.43
  4. Step 4: Simplify right side
    106,887.65x = 10,407,753,821.43
  5. Step 5: Solve for x
    x = 10,407,753,821.43/106,887.65
  6. Step 6: Final answer
    x = 97,370.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.