Home / 156,749.40-216,312.66-88,764.60

Finding the Fourth Proportional to 156,749.40, 216,312.66 and 88,764.60

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Solution

The fourth proportional to 156,749.40, 216,312.66 and 88,764.60 is: 122,494.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,749.40 : 216,312.66 = 88,764.60 : x
  2. Step 2: Convert to fraction form
    156,749.40/216,312.66 = 88,764.60/x
  3. Step 3: Cross multiply
    156,749.40x = 216,312.66 × 88,764.60
  4. Step 4: Simplify right side
    156,749.40x = 19,200,906,739.84
  5. Step 5: Solve for x
    x = 19,200,906,739.84/156,749.40
  6. Step 6: Final answer
    x = 122,494.29

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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.