Home / 146,631.72-202,341.60-86,204.91

Finding the Fourth Proportional to 146,631.72, 202,341.60 and 86,204.91

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Solution

The fourth proportional to 146,631.72, 202,341.60 and 86,204.91 is: 118,956.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,631.72 : 202,341.60 = 86,204.91 : x
  2. Step 2: Convert to fraction form
    146,631.72/202,341.60 = 86,204.91/x
  3. Step 3: Cross multiply
    146,631.72x = 202,341.60 × 86,204.91
  4. Step 4: Simplify right side
    146,631.72x = 17,442,839,417.26
  5. Step 5: Solve for x
    x = 17,442,839,417.26/146,631.72
  6. Step 6: Final answer
    x = 118,956.79

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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.