Home / 100,664.16-151,018.02-30,548.76

Finding the Fourth Proportional to 100,664.16, 151,018.02 and 30,548.76

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Solution

The fourth proportional to 100,664.16, 151,018.02 and 30,548.76 is: 45,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,664.16 : 151,018.02 = 30,548.76 : x
  2. Step 2: Convert to fraction form
    100,664.16/151,018.02 = 30,548.76/x
  3. Step 3: Cross multiply
    100,664.16x = 151,018.02 × 30,548.76
  4. Step 4: Simplify right side
    100,664.16x = 4,613,413,248.66
  5. Step 5: Solve for x
    x = 4,613,413,248.66/100,664.16
  6. Step 6: Final answer
    x = 45,829.75

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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.