Home / 103,639.73-155,541.60-40,490.10

Finding the Fourth Proportional to 103,639.73, 155,541.60 and 40,490.10

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Solution

The fourth proportional to 103,639.73, 155,541.60 and 40,490.10 is: 60,767.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.73 : 155,541.60 = 40,490.10 : x
  2. Step 2: Convert to fraction form
    103,639.73/155,541.60 = 40,490.10/x
  3. Step 3: Cross multiply
    103,639.73x = 155,541.60 × 40,490.10
  4. Step 4: Simplify right side
    103,639.73x = 6,297,894,938.16
  5. Step 5: Solve for x
    x = 6,297,894,938.16/103,639.73
  6. Step 6: Final answer
    x = 60,767.19

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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.