Home / 98,199.07-147,298.70-28,078.38

Finding the Fourth Proportional to 98,199.07, 147,298.70 and 28,078.38

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Solution

The fourth proportional to 98,199.07, 147,298.70 and 28,078.38 is: 42,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,199.07 : 147,298.70 = 28,078.38 : x
  2. Step 2: Convert to fraction form
    98,199.07/147,298.70 = 28,078.38/x
  3. Step 3: Cross multiply
    98,199.07x = 147,298.70 × 28,078.38
  4. Step 4: Simplify right side
    98,199.07x = 4,135,908,942.30
  5. Step 5: Solve for x
    x = 4,135,908,942.30/98,199.07
  6. Step 6: Final answer
    x = 42,117.60

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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.