Home / 98,314.14-147,480.78-39,135.98

Finding the Fourth Proportional to 98,314.14, 147,480.78 and 39,135.98

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Solution

The fourth proportional to 98,314.14, 147,480.78 and 39,135.98 is: 58,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,314.14 : 147,480.78 = 39,135.98 : x
  2. Step 2: Convert to fraction form
    98,314.14/147,480.78 = 39,135.98/x
  3. Step 3: Cross multiply
    98,314.14x = 147,480.78 × 39,135.98
  4. Step 4: Simplify right side
    98,314.14x = 5,771,804,856.46
  5. Step 5: Solve for x
    x = 5,771,804,856.46/98,314.14
  6. Step 6: Final answer
    x = 58,707.78

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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.