Home / 112,823.69-155,698.61-61,835.40

Finding the Fourth Proportional to 112,823.69, 155,698.61 and 61,835.40

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Solution

The fourth proportional to 112,823.69, 155,698.61 and 61,835.40 is: 85,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,823.69 : 155,698.61 = 61,835.40 : x
  2. Step 2: Convert to fraction form
    112,823.69/155,698.61 = 61,835.40/x
  3. Step 3: Cross multiply
    112,823.69x = 155,698.61 × 61,835.40
  4. Step 4: Simplify right side
    112,823.69x = 9,627,685,519.62
  5. Step 5: Solve for x
    x = 9,627,685,519.62/112,823.69
  6. Step 6: Final answer
    x = 85,333.90

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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.