Home / 156,884.40-216,501.84-85,264.48

Finding the Fourth Proportional to 156,884.40, 216,501.84 and 85,264.48

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Solution

The fourth proportional to 156,884.40, 216,501.84 and 85,264.48 is: 117,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,884.40 : 216,501.84 = 85,264.48 : x
  2. Step 2: Convert to fraction form
    156,884.40/216,501.84 = 85,264.48/x
  3. Step 3: Cross multiply
    156,884.40x = 216,501.84 × 85,264.48
  4. Step 4: Simplify right side
    156,884.40x = 18,459,916,806.64
  5. Step 5: Solve for x
    x = 18,459,916,806.64/156,884.40
  6. Step 6: Final answer
    x = 117,665.73

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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.