Home / 98,611.68-136,068.48-56,171.04

Finding the Fourth Proportional to 98,611.68, 136,068.48 and 56,171.04

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Solution

The fourth proportional to 98,611.68, 136,068.48 and 56,171.04 is: 77,507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,611.68 : 136,068.48 = 56,171.04 : x
  2. Step 2: Convert to fraction form
    98,611.68/136,068.48 = 56,171.04/x
  3. Step 3: Cross multiply
    98,611.68x = 136,068.48 × 56,171.04
  4. Step 4: Simplify right side
    98,611.68x = 7,643,108,032.82
  5. Step 5: Solve for x
    x = 7,643,108,032.82/98,611.68
  6. Step 6: Final answer
    x = 77,507.13

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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.