Home / 98,514.48-147,990.40-61,102.20

Finding the Fourth Proportional to 98,514.48, 147,990.40 and 61,102.20

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Solution

The fourth proportional to 98,514.48, 147,990.40 and 61,102.20 is: 91,788.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,514.48 : 147,990.40 = 61,102.20 : x
  2. Step 2: Convert to fraction form
    98,514.48/147,990.40 = 61,102.20/x
  3. Step 3: Cross multiply
    98,514.48x = 147,990.40 × 61,102.20
  4. Step 4: Simplify right side
    98,514.48x = 9,042,539,018.88
  5. Step 5: Solve for x
    x = 9,042,539,018.88/98,514.48
  6. Step 6: Final answer
    x = 91,788.93

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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.