Home / 160,463.35-221,442.78-87,869.31

Finding the Fourth Proportional to 160,463.35, 221,442.78 and 87,869.31

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Solution

The fourth proportional to 160,463.35, 221,442.78 and 87,869.31 is: 121,261.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,463.35 : 221,442.78 = 87,869.31 : x
  2. Step 2: Convert to fraction form
    160,463.35/221,442.78 = 87,869.31/x
  3. Step 3: Cross multiply
    160,463.35x = 221,442.78 × 87,869.31
  4. Step 4: Simplify right side
    160,463.35x = 19,458,024,283.08
  5. Step 5: Solve for x
    x = 19,458,024,283.08/160,463.35
  6. Step 6: Final answer
    x = 121,261.49

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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.