Home / 98,638.48-136,181.82-64,216.18

Finding the Fourth Proportional to 98,638.48, 136,181.82 and 64,216.18

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Solution

The fourth proportional to 98,638.48, 136,181.82 and 64,216.18 is: 88,657.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,638.48 : 136,181.82 = 64,216.18 : x
  2. Step 2: Convert to fraction form
    98,638.48/136,181.82 = 64,216.18/x
  3. Step 3: Cross multiply
    98,638.48x = 136,181.82 × 64,216.18
  4. Step 4: Simplify right side
    98,638.48x = 8,745,076,265.85
  5. Step 5: Solve for x
    x = 8,745,076,265.85/98,638.48
  6. Step 6: Final answer
    x = 88,657.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.