Home / 105,239.25-157,857.67-30,356.92

Finding the Fourth Proportional to 105,239.25, 157,857.67 and 30,356.92

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Solution

The fourth proportional to 105,239.25, 157,857.67 and 30,356.92 is: 45,535.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,239.25 : 157,857.67 = 30,356.92 : x
  2. Step 2: Convert to fraction form
    105,239.25/157,857.67 = 30,356.92/x
  3. Step 3: Cross multiply
    105,239.25x = 157,857.67 × 30,356.92
  4. Step 4: Simplify right side
    105,239.25x = 4,792,072,507.79
  5. Step 5: Solve for x
    x = 4,792,072,507.79/105,239.25
  6. Step 6: Final answer
    x = 45,535.03

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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.