Home / 113,430.43-170,132.66-30,330.91

Finding the Fourth Proportional to 113,430.43, 170,132.66 and 30,330.91

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Solution

The fourth proportional to 113,430.43, 170,132.66 and 30,330.91 is: 45,492.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,430.43 : 170,132.66 = 30,330.91 : x
  2. Step 2: Convert to fraction form
    113,430.43/170,132.66 = 30,330.91/x
  3. Step 3: Cross multiply
    113,430.43x = 170,132.66 × 30,330.91
  4. Step 4: Simplify right side
    113,430.43x = 5,160,277,396.20
  5. Step 5: Solve for x
    x = 5,160,277,396.20/113,430.43
  6. Step 6: Final answer
    x = 45,492.89

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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.