Home / 105,432.70-145,497.03-57,686.24

Finding the Fourth Proportional to 105,432.70, 145,497.03 and 57,686.24

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Solution

The fourth proportional to 105,432.70, 145,497.03 and 57,686.24 is: 79,606.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,432.70 : 145,497.03 = 57,686.24 : x
  2. Step 2: Convert to fraction form
    105,432.70/145,497.03 = 57,686.24/x
  3. Step 3: Cross multiply
    105,432.70x = 145,497.03 × 57,686.24
  4. Step 4: Simplify right side
    105,432.70x = 8,393,176,591.87
  5. Step 5: Solve for x
    x = 8,393,176,591.87/105,432.70
  6. Step 6: Final answer
    x = 79,606.96

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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.