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Finding the Fourth Proportional to 153,403.73, 230,069.14 and 69,111.89

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Solution

The fourth proportional to 153,403.73, 230,069.14 and 69,111.89 is: 103,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,403.73 : 230,069.14 = 69,111.89 : x
  2. Step 2: Convert to fraction form
    153,403.73/230,069.14 = 69,111.89/x
  3. Step 3: Cross multiply
    153,403.73x = 230,069.14 × 69,111.89
  4. Step 4: Simplify right side
    153,403.73x = 15,900,513,096.07
  5. Step 5: Solve for x
    x = 15,900,513,096.07/153,403.73
  6. Step 6: Final answer
    x = 103,651.41

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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.