Home / 133,140.92-183,650.10-101,239.88

Finding the Fourth Proportional to 133,140.92, 183,650.10 and 101,239.88

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Solution

The fourth proportional to 133,140.92, 183,650.10 and 101,239.88 is: 139,646.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,140.92 : 183,650.10 = 101,239.88 : x
  2. Step 2: Convert to fraction form
    133,140.92/183,650.10 = 101,239.88/x
  3. Step 3: Cross multiply
    133,140.92x = 183,650.10 × 101,239.88
  4. Step 4: Simplify right side
    133,140.92x = 18,592,714,085.99
  5. Step 5: Solve for x
    x = 18,592,714,085.99/133,140.92
  6. Step 6: Final answer
    x = 139,646.88

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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.