Home / 98,935.20-136,540.08-56,496.96

Finding the Fourth Proportional to 98,935.20, 136,540.08 and 56,496.96

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Solution

The fourth proportional to 98,935.20, 136,540.08 and 56,496.96 is: 77,971.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,935.20 : 136,540.08 = 56,496.96 : x
  2. Step 2: Convert to fraction form
    98,935.20/136,540.08 = 56,496.96/x
  3. Step 3: Cross multiply
    98,935.20x = 136,540.08 × 56,496.96
  4. Step 4: Simplify right side
    98,935.20x = 7,714,099,438.16
  5. Step 5: Solve for x
    x = 7,714,099,438.16/98,935.20
  6. Step 6: Final answer
    x = 77,971.23

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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.