Home / 188,106.72-282,154.60-54,990.10

Finding the Fourth Proportional to 188,106.72, 282,154.60 and 54,990.10

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Solution

The fourth proportional to 188,106.72, 282,154.60 and 54,990.10 is: 82,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,106.72 : 282,154.60 = 54,990.10 : x
  2. Step 2: Convert to fraction form
    188,106.72/282,154.60 = 54,990.10/x
  3. Step 3: Cross multiply
    188,106.72x = 282,154.60 × 54,990.10
  4. Step 4: Simplify right side
    188,106.72x = 15,515,709,669.46
  5. Step 5: Solve for x
    x = 15,515,709,669.46/188,106.72
  6. Step 6: Final answer
    x = 82,483.55

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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.