Home / 98,178.67-147,272.46-31,619.35

Finding the Fourth Proportional to 98,178.67, 147,272.46 and 31,619.35

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Solution

The fourth proportional to 98,178.67, 147,272.46 and 31,619.35 is: 47,430.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,178.67 : 147,272.46 = 31,619.35 : x
  2. Step 2: Convert to fraction form
    98,178.67/147,272.46 = 31,619.35/x
  3. Step 3: Cross multiply
    98,178.67x = 147,272.46 × 31,619.35
  4. Step 4: Simplify right side
    98,178.67x = 4,656,659,458.10
  5. Step 5: Solve for x
    x = 4,656,659,458.10/98,178.67
  6. Step 6: Final answer
    x = 47,430.46

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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.