Home / 151,345.08-208,638.05-105,882.21

Finding the Fourth Proportional to 151,345.08, 208,638.05 and 105,882.21

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Solution

The fourth proportional to 151,345.08, 208,638.05 and 105,882.21 is: 145,964.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,345.08 : 208,638.05 = 105,882.21 : x
  2. Step 2: Convert to fraction form
    151,345.08/208,638.05 = 105,882.21/x
  3. Step 3: Cross multiply
    151,345.08x = 208,638.05 × 105,882.21
  4. Step 4: Simplify right side
    151,345.08x = 22,091,057,294.68
  5. Step 5: Solve for x
    x = 22,091,057,294.68/151,345.08
  6. Step 6: Final answer
    x = 145,964.82

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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.