Home / 156,884.83-216,501.06-85,265.02

Finding the Fourth Proportional to 156,884.83, 216,501.06 and 85,265.02

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Solution

The fourth proportional to 156,884.83, 216,501.06 and 85,265.02 is: 117,665.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,884.83 : 216,501.06 = 85,265.02 : x
  2. Step 2: Convert to fraction form
    156,884.83/216,501.06 = 85,265.02/x
  3. Step 3: Cross multiply
    156,884.83x = 216,501.06 × 85,265.02
  4. Step 4: Simplify right side
    156,884.83x = 18,459,967,210.92
  5. Step 5: Solve for x
    x = 18,459,967,210.92/156,884.83
  6. Step 6: Final answer
    x = 117,665.72

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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.