Home / 156,915.16-235,298.64-57,005.72

Finding the Fourth Proportional to 156,915.16, 235,298.64 and 57,005.72

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Solution

The fourth proportional to 156,915.16, 235,298.64 and 57,005.72 is: 85,481.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,915.16 : 235,298.64 = 57,005.72 : x
  2. Step 2: Convert to fraction form
    156,915.16/235,298.64 = 57,005.72/x
  3. Step 3: Cross multiply
    156,915.16x = 235,298.64 × 57,005.72
  4. Step 4: Simplify right side
    156,915.16x = 13,413,368,388.22
  5. Step 5: Solve for x
    x = 13,413,368,388.22/156,915.16
  6. Step 6: Final answer
    x = 85,481.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.