Home / 286,181.38-429,272.07-99,192.88

Finding the Fourth Proportional to 286,181.38, 429,272.07 and 99,192.88

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Solution

The fourth proportional to 286,181.38, 429,272.07 and 99,192.88 is: 148,789.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,181.38 : 429,272.07 = 99,192.88 : x
  2. Step 2: Convert to fraction form
    286,181.38/429,272.07 = 99,192.88/x
  3. Step 3: Cross multiply
    286,181.38x = 429,272.07 × 99,192.88
  4. Step 4: Simplify right side
    286,181.38x = 42,580,732,926.86
  5. Step 5: Solve for x
    x = 42,580,732,926.86/286,181.38
  6. Step 6: Final answer
    x = 148,789.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.