Home / 99,078.41-148,626.26-28,001.80

Finding the Fourth Proportional to 99,078.41, 148,626.26 and 28,001.80

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Solution

The fourth proportional to 99,078.41, 148,626.26 and 28,001.80 is: 42,005.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,078.41 : 148,626.26 = 28,001.80 : x
  2. Step 2: Convert to fraction form
    99,078.41/148,626.26 = 28,001.80/x
  3. Step 3: Cross multiply
    99,078.41x = 148,626.26 × 28,001.80
  4. Step 4: Simplify right side
    99,078.41x = 4,161,802,807.27
  5. Step 5: Solve for x
    x = 4,161,802,807.27/99,078.41
  6. Step 6: Final answer
    x = 42,005.14

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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.