Home / 132,860.32-183,342.96-72,430

Finding the Fourth Proportional to 132,860.32, 183,342.96 and 72,430

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Solution

The fourth proportional to 132,860.32, 183,342.96 and 72,430 is: 99,951.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,860.32 : 183,342.96 = 72,430 : x
  2. Step 2: Convert to fraction form
    132,860.32/183,342.96 = 72,430/x
  3. Step 3: Cross multiply
    132,860.32x = 183,342.96 × 72,430
  4. Step 4: Simplify right side
    132,860.32x = 13,279,530,592.80
  5. Step 5: Solve for x
    x = 13,279,530,592.80/132,860.32
  6. Step 6: Final answer
    x = 99,951.07

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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.