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Finding the Fourth Proportional to 105,035.52, 144,940.80 and 57,286.08

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Solution

The fourth proportional to 105,035.52, 144,940.80 and 57,286.08 is: 79,050.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,035.52 : 144,940.80 = 57,286.08 : x
  2. Step 2: Convert to fraction form
    105,035.52/144,940.80 = 57,286.08/x
  3. Step 3: Cross multiply
    105,035.52x = 144,940.80 × 57,286.08
  4. Step 4: Simplify right side
    105,035.52x = 8,303,090,264.06
  5. Step 5: Solve for x
    x = 8,303,090,264.06/105,035.52
  6. Step 6: Final answer
    x = 79,050.31

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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.