Home / 103,411.88-155,118.48-56,639.24

Finding the Fourth Proportional to 103,411.88, 155,118.48 and 56,639.24

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Solution

The fourth proportional to 103,411.88, 155,118.48 and 56,639.24 is: 84,959.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,411.88 : 155,118.48 = 56,639.24 : x
  2. Step 2: Convert to fraction form
    103,411.88/155,118.48 = 56,639.24/x
  3. Step 3: Cross multiply
    103,411.88x = 155,118.48 × 56,639.24
  4. Step 4: Simplify right side
    103,411.88x = 8,785,792,817.16
  5. Step 5: Solve for x
    x = 8,785,792,817.16/103,411.88
  6. Step 6: Final answer
    x = 84,959.22

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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.