Home / 98,656.12-136,131.88-56,206.48

Finding the Fourth Proportional to 98,656.12, 136,131.88 and 56,206.48

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Solution

The fourth proportional to 98,656.12, 136,131.88 and 56,206.48 is: 77,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,656.12 : 136,131.88 = 56,206.48 : x
  2. Step 2: Convert to fraction form
    98,656.12/136,131.88 = 56,206.48/x
  3. Step 3: Cross multiply
    98,656.12x = 136,131.88 × 56,206.48
  4. Step 4: Simplify right side
    98,656.12x = 7,651,493,790.58
  5. Step 5: Solve for x
    x = 7,651,493,790.58/98,656.12
  6. Step 6: Final answer
    x = 77,557.21

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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.