Home / 105,041.16-157,561.92-31,169.16

Finding the Fourth Proportional to 105,041.16, 157,561.92 and 31,169.16

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Solution

The fourth proportional to 105,041.16, 157,561.92 and 31,169.16 is: 46,753.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,041.16 : 157,561.92 = 31,169.16 : x
  2. Step 2: Convert to fraction form
    105,041.16/157,561.92 = 31,169.16/x
  3. Step 3: Cross multiply
    105,041.16x = 157,561.92 × 31,169.16
  4. Step 4: Simplify right side
    105,041.16x = 4,911,072,694.39
  5. Step 5: Solve for x
    x = 4,911,072,694.39/105,041.16
  6. Step 6: Final answer
    x = 46,753.79

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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.