Home / 132,619.07-183,016.65-72,191.45

Finding the Fourth Proportional to 132,619.07, 183,016.65 and 72,191.45

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Solution

The fourth proportional to 132,619.07, 183,016.65 and 72,191.45 is: 99,625.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,619.07 : 183,016.65 = 72,191.45 : x
  2. Step 2: Convert to fraction form
    132,619.07/183,016.65 = 72,191.45/x
  3. Step 3: Cross multiply
    132,619.07x = 183,016.65 × 72,191.45
  4. Step 4: Simplify right side
    132,619.07x = 13,212,237,337.64
  5. Step 5: Solve for x
    x = 13,212,237,337.64/132,619.07
  6. Step 6: Final answer
    x = 99,625.47

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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.