Home / 133,225.92-183,644.64-90,711.36

Finding the Fourth Proportional to 133,225.92, 183,644.64 and 90,711.36

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Solution

The fourth proportional to 133,225.92, 183,644.64 and 90,711.36 is: 125,040.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,225.92 : 183,644.64 = 90,711.36 : x
  2. Step 2: Convert to fraction form
    133,225.92/183,644.64 = 90,711.36/x
  3. Step 3: Cross multiply
    133,225.92x = 183,644.64 × 90,711.36
  4. Step 4: Simplify right side
    133,225.92x = 16,658,655,051.11
  5. Step 5: Solve for x
    x = 16,658,655,051.11/133,225.92
  6. Step 6: Final answer
    x = 125,040.65

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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.