Home / 98,638.24-136,100.64-56,185.60

Finding the Fourth Proportional to 98,638.24, 136,100.64 and 56,185.60

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Solution

The fourth proportional to 98,638.24, 136,100.64 and 56,185.60 is: 77,524.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,638.24 : 136,100.64 = 56,185.60 : x
  2. Step 2: Convert to fraction form
    98,638.24/136,100.64 = 56,185.60/x
  3. Step 3: Cross multiply
    98,638.24x = 136,100.64 × 56,185.60
  4. Step 4: Simplify right side
    98,638.24x = 7,646,896,118.78
  5. Step 5: Solve for x
    x = 7,646,896,118.78/98,638.24
  6. Step 6: Final answer
    x = 77,524.66

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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.