Home / 112,700.85-155,522.37-61,712.67

Finding the Fourth Proportional to 112,700.85, 155,522.37 and 61,712.67

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Solution

The fourth proportional to 112,700.85, 155,522.37 and 61,712.67 is: 85,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,700.85 : 155,522.37 = 61,712.67 : x
  2. Step 2: Convert to fraction form
    112,700.85/155,522.37 = 61,712.67/x
  3. Step 3: Cross multiply
    112,700.85x = 155,522.37 × 61,712.67
  4. Step 4: Simplify right side
    112,700.85x = 9,597,700,697.43
  5. Step 5: Solve for x
    x = 9,597,700,697.43/112,700.85
  6. Step 6: Final answer
    x = 85,160.85

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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.