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Finding the Fourth Proportional to 145,617.75, 200,957.36 and 89,018.19

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Solution

The fourth proportional to 145,617.75, 200,957.36 and 89,018.19 is: 122,848.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,617.75 : 200,957.36 = 89,018.19 : x
  2. Step 2: Convert to fraction form
    145,617.75/200,957.36 = 89,018.19/x
  3. Step 3: Cross multiply
    145,617.75x = 200,957.36 × 89,018.19
  4. Step 4: Simplify right side
    145,617.75x = 17,888,860,009.29
  5. Step 5: Solve for x
    x = 17,888,860,009.29/145,617.75
  6. Step 6: Final answer
    x = 122,848.07

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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.