Home / 133,106.28-183,717.30-87,792.36

Finding the Fourth Proportional to 133,106.28, 183,717.30 and 87,792.36

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Solution

The fourth proportional to 133,106.28, 183,717.30 and 87,792.36 is: 121,173.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,106.28 : 183,717.30 = 87,792.36 : x
  2. Step 2: Convert to fraction form
    133,106.28/183,717.30 = 87,792.36/x
  3. Step 3: Cross multiply
    133,106.28x = 183,717.30 × 87,792.36
  4. Step 4: Simplify right side
    133,106.28x = 16,128,975,339.83
  5. Step 5: Solve for x
    x = 16,128,975,339.83/133,106.28
  6. Step 6: Final answer
    x = 121,173.66

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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.