Home / 156,749.22-234,918.36-72,498.60

Finding the Fourth Proportional to 156,749.22, 234,918.36 and 72,498.60

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Solution

The fourth proportional to 156,749.22, 234,918.36 and 72,498.60 is: 108,652.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,749.22 : 234,918.36 = 72,498.60 : x
  2. Step 2: Convert to fraction form
    156,749.22/234,918.36 = 72,498.60/x
  3. Step 3: Cross multiply
    156,749.22x = 234,918.36 × 72,498.60
  4. Step 4: Simplify right side
    156,749.22x = 17,031,252,214.30
  5. Step 5: Solve for x
    x = 17,031,252,214.30/156,749.22
  6. Step 6: Final answer
    x = 108,652.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.