Home / 99,161.51-148,723.16-28,083.60

Finding the Fourth Proportional to 99,161.51, 148,723.16 and 28,083.60

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Solution

The fourth proportional to 99,161.51, 148,723.16 and 28,083.60 is: 42,119.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,161.51 : 148,723.16 = 28,083.60 : x
  2. Step 2: Convert to fraction form
    99,161.51/148,723.16 = 28,083.60/x
  3. Step 3: Cross multiply
    99,161.51x = 148,723.16 × 28,083.60
  4. Step 4: Simplify right side
    99,161.51x = 4,176,681,595.76
  5. Step 5: Solve for x
    x = 4,176,681,595.76/99,161.51
  6. Step 6: Final answer
    x = 42,119.99

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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.