Home / 99,536.40-148,867.20-75,916.80

Finding the Fourth Proportional to 99,536.40, 148,867.20 and 75,916.80

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Solution

The fourth proportional to 99,536.40, 148,867.20 and 75,916.80 is: 113,541.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,536.40 : 148,867.20 = 75,916.80 : x
  2. Step 2: Convert to fraction form
    99,536.40/148,867.20 = 75,916.80/x
  3. Step 3: Cross multiply
    99,536.40x = 148,867.20 × 75,916.80
  4. Step 4: Simplify right side
    99,536.40x = 11,301,521,448.96
  5. Step 5: Solve for x
    x = 11,301,521,448.96/99,536.40
  6. Step 6: Final answer
    x = 113,541.59

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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.