Home / 103,826.88-155,874.24-89,130.24

Finding the Fourth Proportional to 103,826.88, 155,874.24 and 89,130.24

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Solution

The fourth proportional to 103,826.88, 155,874.24 and 89,130.24 is: 133,810.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,826.88 : 155,874.24 = 89,130.24 : x
  2. Step 2: Convert to fraction form
    103,826.88/155,874.24 = 89,130.24/x
  3. Step 3: Cross multiply
    103,826.88x = 155,874.24 × 89,130.24
  4. Step 4: Simplify right side
    103,826.88x = 13,893,108,421.02
  5. Step 5: Solve for x
    x = 13,893,108,421.02/103,826.88
  6. Step 6: Final answer
    x = 133,810.32

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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.