Home / 160,787.07-221,871.51-89,166.87

Finding the Fourth Proportional to 160,787.07, 221,871.51 and 89,166.87

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Solution

The fourth proportional to 160,787.07, 221,871.51 and 89,166.87 is: 123,042.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,787.07 : 221,871.51 = 89,166.87 : x
  2. Step 2: Convert to fraction form
    160,787.07/221,871.51 = 89,166.87/x
  3. Step 3: Cross multiply
    160,787.07x = 221,871.51 × 89,166.87
  4. Step 4: Simplify right side
    160,787.07x = 19,783,588,088.87
  5. Step 5: Solve for x
    x = 19,783,588,088.87/160,787.07
  6. Step 6: Final answer
    x = 123,042.16

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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.