Home / 98,725.68-136,241.43-55,714.28

Finding the Fourth Proportional to 98,725.68, 136,241.43 and 55,714.28

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Solution

The fourth proportional to 98,725.68, 136,241.43 and 55,714.28 is: 76,885.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,725.68 : 136,241.43 = 55,714.28 : x
  2. Step 2: Convert to fraction form
    98,725.68/136,241.43 = 55,714.28/x
  3. Step 3: Cross multiply
    98,725.68x = 136,241.43 × 55,714.28
  4. Step 4: Simplify right side
    98,725.68x = 7,590,592,497.41
  5. Step 5: Solve for x
    x = 7,590,592,497.41/98,725.68
  6. Step 6: Final answer
    x = 76,885.69

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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.