Home / 156,931.10-216,560.35-88,954.32

Finding the Fourth Proportional to 156,931.10, 216,560.35 and 88,954.32

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Solution

The fourth proportional to 156,931.10, 216,560.35 and 88,954.32 is: 122,754.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,931.10 : 216,560.35 = 88,954.32 : x
  2. Step 2: Convert to fraction form
    156,931.10/216,560.35 = 88,954.32/x
  3. Step 3: Cross multiply
    156,931.10x = 216,560.35 × 88,954.32
  4. Step 4: Simplify right side
    156,931.10x = 19,263,978,673.21
  5. Step 5: Solve for x
    x = 19,263,978,673.21/156,931.10
  6. Step 6: Final answer
    x = 122,754.37

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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.