Home / 105,472.37-145,551.69-57,725.70

Finding the Fourth Proportional to 105,472.37, 145,551.69 and 57,725.70

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Solution

The fourth proportional to 105,472.37, 145,551.69 and 57,725.70 is: 79,661.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,472.37 : 145,551.69 = 57,725.70 : x
  2. Step 2: Convert to fraction form
    105,472.37/145,551.69 = 57,725.70/x
  3. Step 3: Cross multiply
    105,472.37x = 145,551.69 × 57,725.70
  4. Step 4: Simplify right side
    105,472.37x = 8,402,073,191.43
  5. Step 5: Solve for x
    x = 8,402,073,191.43/105,472.37
  6. Step 6: Final answer
    x = 79,661.37

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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.