Home / 133,018.30-183,557.90-75,649.88

Finding the Fourth Proportional to 133,018.30, 183,557.90 and 75,649.88

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Solution

The fourth proportional to 133,018.30, 183,557.90 and 75,649.88 is: 104,392.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,018.30 : 183,557.90 = 75,649.88 : x
  2. Step 2: Convert to fraction form
    133,018.30/183,557.90 = 75,649.88/x
  3. Step 3: Cross multiply
    133,018.30x = 183,557.90 × 75,649.88
  4. Step 4: Simplify right side
    133,018.30x = 13,886,133,108.05
  5. Step 5: Solve for x
    x = 13,886,133,108.05/133,018.30
  6. Step 6: Final answer
    x = 104,392.65

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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.