Home / 156,912.21-216,531.72-88,925.22

Finding the Fourth Proportional to 156,912.21, 216,531.72 and 88,925.22

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Solution

The fourth proportional to 156,912.21, 216,531.72 and 88,925.22 is: 122,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,912.21 : 216,531.72 = 88,925.22 : x
  2. Step 2: Convert to fraction form
    156,912.21/216,531.72 = 88,925.22/x
  3. Step 3: Cross multiply
    156,912.21x = 216,531.72 × 88,925.22
  4. Step 4: Simplify right side
    156,912.21x = 19,255,130,837.98
  5. Step 5: Solve for x
    x = 19,255,130,837.98/156,912.21
  6. Step 6: Final answer
    x = 122,712.76

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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.