Home / 156,731.94-216,345.27-93,069.30

Finding the Fourth Proportional to 156,731.94, 216,345.27 and 93,069.30

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Solution

The fourth proportional to 156,731.94, 216,345.27 and 93,069.30 is: 128,468.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,731.94 : 216,345.27 = 93,069.30 : x
  2. Step 2: Convert to fraction form
    156,731.94/216,345.27 = 93,069.30/x
  3. Step 3: Cross multiply
    156,731.94x = 216,345.27 × 93,069.30
  4. Step 4: Simplify right side
    156,731.94x = 20,135,102,837.21
  5. Step 5: Solve for x
    x = 20,135,102,837.21/156,731.94
  6. Step 6: Final answer
    x = 128,468.41

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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.