Home / 112,635.78-155,442.21-62,334.78

Finding the Fourth Proportional to 112,635.78, 155,442.21 and 62,334.78

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Solution

The fourth proportional to 112,635.78, 155,442.21 and 62,334.78 is: 86,024.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,635.78 : 155,442.21 = 62,334.78 : x
  2. Step 2: Convert to fraction form
    112,635.78/155,442.21 = 62,334.78/x
  3. Step 3: Cross multiply
    112,635.78x = 155,442.21 × 62,334.78
  4. Step 4: Simplify right side
    112,635.78x = 9,689,455,963.06
  5. Step 5: Solve for x
    x = 9,689,455,963.06/112,635.78
  6. Step 6: Final answer
    x = 86,024.67

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1.5x scale

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.