Home / 98,695.50-147,999.30-31,210.80

Finding the Fourth Proportional to 98,695.50, 147,999.30 and 31,210.80

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Solution

The fourth proportional to 98,695.50, 147,999.30 and 31,210.80 is: 46,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,695.50 : 147,999.30 = 31,210.80 : x
  2. Step 2: Convert to fraction form
    98,695.50/147,999.30 = 31,210.80/x
  3. Step 3: Cross multiply
    98,695.50x = 147,999.30 × 31,210.80
  4. Step 4: Simplify right side
    98,695.50x = 4,619,176,552.44
  5. Step 5: Solve for x
    x = 4,619,176,552.44/98,695.50
  6. Step 6: Final answer
    x = 46,802.30

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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.