Home / 202,962.15-280,080.86-112,321.94

Finding the Fourth Proportional to 202,962.15, 280,080.86 and 112,321.94

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Solution

The fourth proportional to 202,962.15, 280,080.86 and 112,321.94 is: 155,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,962.15 : 280,080.86 = 112,321.94 : x
  2. Step 2: Convert to fraction form
    202,962.15/280,080.86 = 112,321.94/x
  3. Step 3: Cross multiply
    202,962.15x = 280,080.86 × 112,321.94
  4. Step 4: Simplify right side
    202,962.15x = 31,459,223,590.05
  5. Step 5: Solve for x
    x = 31,459,223,590.05/202,962.15
  6. Step 6: Final answer
    x = 155,000.45

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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.