Home / 103,961.80-155,883.02-40,707.87

Finding the Fourth Proportional to 103,961.80, 155,883.02 and 40,707.87

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Solution

The fourth proportional to 103,961.80, 155,883.02 and 40,707.87 is: 61,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,961.80 : 155,883.02 = 40,707.87 : x
  2. Step 2: Convert to fraction form
    103,961.80/155,883.02 = 40,707.87/x
  3. Step 3: Cross multiply
    103,961.80x = 155,883.02 × 40,707.87
  4. Step 4: Simplify right side
    103,961.80x = 6,345,664,925.27
  5. Step 5: Solve for x
    x = 6,345,664,925.27/103,961.80
  6. Step 6: Final answer
    x = 61,038.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.