Home / 115,205.76-172,802.88-45,097.92

Finding the Fourth Proportional to 115,205.76, 172,802.88 and 45,097.92

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Solution

The fourth proportional to 115,205.76, 172,802.88 and 45,097.92 is: 67,644.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,205.76 : 172,802.88 = 45,097.92 : x
  2. Step 2: Convert to fraction form
    115,205.76/172,802.88 = 45,097.92/x
  3. Step 3: Cross multiply
    115,205.76x = 172,802.88 × 45,097.92
  4. Step 4: Simplify right side
    115,205.76x = 7,793,050,458.01
  5. Step 5: Solve for x
    x = 7,793,050,458.01/115,205.76
  6. Step 6: Final answer
    x = 67,644.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.