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Finding the Fourth Proportional to 157,968.71, 237,018.99 and 69,285.86

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Solution

The fourth proportional to 157,968.71, 237,018.99 and 69,285.86 is: 103,957.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,968.71 : 237,018.99 = 69,285.86 : x
  2. Step 2: Convert to fraction form
    157,968.71/237,018.99 = 69,285.86/x
  3. Step 3: Cross multiply
    157,968.71x = 237,018.99 × 69,285.86
  4. Step 4: Simplify right side
    157,968.71x = 16,422,063,026.96
  5. Step 5: Solve for x
    x = 16,422,063,026.96/157,968.71
  6. Step 6: Final answer
    x = 103,957.70

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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.