Home / 156,750.22-216,316.58-85,130.76

Finding the Fourth Proportional to 156,750.22, 216,316.58 and 85,130.76

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Solution

The fourth proportional to 156,750.22, 216,316.58 and 85,130.76 is: 117,481.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,750.22 : 216,316.58 = 85,130.76 : x
  2. Step 2: Convert to fraction form
    156,750.22/216,316.58 = 85,130.76/x
  3. Step 3: Cross multiply
    156,750.22x = 216,316.58 × 85,130.76
  4. Step 4: Simplify right side
    156,750.22x = 18,415,193,561.59
  5. Step 5: Solve for x
    x = 18,415,193,561.59/156,750.22
  6. Step 6: Final answer
    x = 117,481.13

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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.