Home / 132,778.20-183,231.60-72,349.35

Finding the Fourth Proportional to 132,778.20, 183,231.60 and 72,349.35

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Solution

The fourth proportional to 132,778.20, 183,231.60 and 72,349.35 is: 99,840.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,778.20 : 183,231.60 = 72,349.35 : x
  2. Step 2: Convert to fraction form
    132,778.20/183,231.60 = 72,349.35/x
  3. Step 3: Cross multiply
    132,778.20x = 183,231.60 × 72,349.35
  4. Step 4: Simplify right side
    132,778.20x = 13,256,687,159.46
  5. Step 5: Solve for x
    x = 13,256,687,159.46/132,778.20
  6. Step 6: Final answer
    x = 99,840.84

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1.5x scale

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.