Home / 133,112.77-183,703.06-72,689.02

Finding the Fourth Proportional to 133,112.77, 183,703.06 and 72,689.02

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Solution

The fourth proportional to 133,112.77, 183,703.06 and 72,689.02 is: 100,314.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,112.77 : 183,703.06 = 72,689.02 : x
  2. Step 2: Convert to fraction form
    133,112.77/183,703.06 = 72,689.02/x
  3. Step 3: Cross multiply
    133,112.77x = 183,703.06 × 72,689.02
  4. Step 4: Simplify right side
    133,112.77x = 13,353,195,402.40
  5. Step 5: Solve for x
    x = 13,353,195,402.40/133,112.77
  6. Step 6: Final answer
    x = 100,314.91

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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.