Home / 132,640.95-183,041.06-72,212.79

Finding the Fourth Proportional to 132,640.95, 183,041.06 and 72,212.79

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Solution

The fourth proportional to 132,640.95, 183,041.06 and 72,212.79 is: 99,651.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,640.95 : 183,041.06 = 72,212.79 : x
  2. Step 2: Convert to fraction form
    132,640.95/183,041.06 = 72,212.79/x
  3. Step 3: Cross multiply
    132,640.95x = 183,041.06 × 72,212.79
  4. Step 4: Simplify right side
    132,640.95x = 13,217,905,266.09
  5. Step 5: Solve for x
    x = 13,217,905,266.09/132,640.95
  6. Step 6: Final answer
    x = 99,651.77

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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.