Home / 112,607.88-155,401.14-62,307.72

Finding the Fourth Proportional to 112,607.88, 155,401.14 and 62,307.72

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Solution

The fourth proportional to 112,607.88, 155,401.14 and 62,307.72 is: 85,985.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,607.88 : 155,401.14 = 62,307.72 : x
  2. Step 2: Convert to fraction form
    112,607.88/155,401.14 = 62,307.72/x
  3. Step 3: Cross multiply
    112,607.88x = 155,401.14 × 62,307.72
  4. Step 4: Simplify right side
    112,607.88x = 9,682,690,718.80
  5. Step 5: Solve for x
    x = 9,682,690,718.80/112,607.88
  6. Step 6: Final answer
    x = 85,985.91

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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.