Home / 105,432.18-145,499.87-57,684.44

Finding the Fourth Proportional to 105,432.18, 145,499.87 and 57,684.44

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Solution

The fourth proportional to 105,432.18, 145,499.87 and 57,684.44 is: 79,606.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,432.18 : 145,499.87 = 57,684.44 : x
  2. Step 2: Convert to fraction form
    105,432.18/145,499.87 = 57,684.44/x
  3. Step 3: Cross multiply
    105,432.18x = 145,499.87 × 57,684.44
  4. Step 4: Simplify right side
    105,432.18x = 8,393,078,521.02
  5. Step 5: Solve for x
    x = 8,393,078,521.02/105,432.18
  6. Step 6: Final answer
    x = 79,606.42

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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.