Home / 112,698.85-155,519.61-61,710.67

Finding the Fourth Proportional to 112,698.85, 155,519.61 and 61,710.67

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Solution

The fourth proportional to 112,698.85, 155,519.61 and 61,710.67 is: 85,158.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,698.85 : 155,519.61 = 61,710.67 : x
  2. Step 2: Convert to fraction form
    112,698.85/155,519.61 = 61,710.67/x
  3. Step 3: Cross multiply
    112,698.85x = 155,519.61 × 61,710.67
  4. Step 4: Simplify right side
    112,698.85x = 9,597,219,331.24
  5. Step 5: Solve for x
    x = 9,597,219,331.24/112,698.85
  6. Step 6: Final answer
    x = 85,158.09

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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.