Home / 99,326.60-148,860.30-40,113.80

Finding the Fourth Proportional to 99,326.60, 148,860.30 and 40,113.80

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Solution

The fourth proportional to 99,326.60, 148,860.30 and 40,113.80 is: 60,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,326.60 : 148,860.30 = 40,113.80 : x
  2. Step 2: Convert to fraction form
    99,326.60/148,860.30 = 40,113.80/x
  3. Step 3: Cross multiply
    99,326.60x = 148,860.30 × 40,113.80
  4. Step 4: Simplify right side
    99,326.60x = 5,971,352,302.14
  5. Step 5: Solve for x
    x = 5,971,352,302.14/99,326.60
  6. Step 6: Final answer
    x = 60,118.36

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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.