Home / 112,730.36-155,565.52-61,740.56

Finding the Fourth Proportional to 112,730.36, 155,565.52 and 61,740.56

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Solution

The fourth proportional to 112,730.36, 155,565.52 and 61,740.56 is: 85,200.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,730.36 : 155,565.52 = 61,740.56 : x
  2. Step 2: Convert to fraction form
    112,730.36/155,565.52 = 61,740.56/x
  3. Step 3: Cross multiply
    112,730.36x = 155,565.52 × 61,740.56
  4. Step 4: Simplify right side
    112,730.36x = 9,604,702,321.49
  5. Step 5: Solve for x
    x = 9,604,702,321.49/112,730.36
  6. Step 6: Final answer
    x = 85,200.67

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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.