Home / 98,709.12-148,113.36-39,587.04

Finding the Fourth Proportional to 98,709.12, 148,113.36 and 39,587.04

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Solution

The fourth proportional to 98,709.12, 148,113.36 and 39,587.04 is: 59,400.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,709.12 : 148,113.36 = 39,587.04 : x
  2. Step 2: Convert to fraction form
    98,709.12/148,113.36 = 39,587.04/x
  3. Step 3: Cross multiply
    98,709.12x = 148,113.36 × 39,587.04
  4. Step 4: Simplify right side
    98,709.12x = 5,863,369,506.85
  5. Step 5: Solve for x
    x = 5,863,369,506.85/98,709.12
  6. Step 6: Final answer
    x = 59,400.48

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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.