Home / 105,253.39-145,247.99-57,505.71

Finding the Fourth Proportional to 105,253.39, 145,247.99 and 57,505.71

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Solution

The fourth proportional to 105,253.39, 145,247.99 and 57,505.71 is: 79,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,253.39 : 145,247.99 = 57,505.71 : x
  2. Step 2: Convert to fraction form
    105,253.39/145,247.99 = 57,505.71/x
  3. Step 3: Cross multiply
    105,253.39x = 145,247.99 × 57,505.71
  4. Step 4: Simplify right side
    105,253.39x = 8,352,589,048.17
  5. Step 5: Solve for x
    x = 8,352,589,048.17/105,253.39
  6. Step 6: Final answer
    x = 79,356.96

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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.