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Finding the Fourth Proportional to 145,159.29, 217,823.01 and 60,912

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Solution

The fourth proportional to 145,159.29, 217,823.01 and 60,912 is: 91,403.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,159.29 : 217,823.01 = 60,912 : x
  2. Step 2: Convert to fraction form
    145,159.29/217,823.01 = 60,912/x
  3. Step 3: Cross multiply
    145,159.29x = 217,823.01 × 60,912
  4. Step 4: Simplify right side
    145,159.29x = 13,268,035,185.12
  5. Step 5: Solve for x
    x = 13,268,035,185.12/145,159.29
  6. Step 6: Final answer
    x = 91,403.28

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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.