Home / 133,139.09-183,932.37-87,307.77

Finding the Fourth Proportional to 133,139.09, 183,932.37 and 87,307.77

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Solution

The fourth proportional to 133,139.09, 183,932.37 and 87,307.77 is: 120,616.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,139.09 : 183,932.37 = 87,307.77 : x
  2. Step 2: Convert to fraction form
    133,139.09/183,932.37 = 87,307.77/x
  3. Step 3: Cross multiply
    133,139.09x = 183,932.37 × 87,307.77
  4. Step 4: Simplify right side
    133,139.09x = 16,058,725,055.51
  5. Step 5: Solve for x
    x = 16,058,725,055.51/133,139.09
  6. Step 6: Final answer
    x = 120,616.15

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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.