Home / 97,981.58-146,957.64-31,412.72

Finding the Fourth Proportional to 97,981.58, 146,957.64 and 31,412.72

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Solution

The fourth proportional to 97,981.58, 146,957.64 and 31,412.72 is: 47,114.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,981.58 : 146,957.64 = 31,412.72 : x
  2. Step 2: Convert to fraction form
    97,981.58/146,957.64 = 31,412.72/x
  3. Step 3: Cross multiply
    97,981.58x = 146,957.64 × 31,412.72
  4. Step 4: Simplify right side
    97,981.58x = 4,616,339,197.18
  5. Step 5: Solve for x
    x = 4,616,339,197.18/97,981.58
  6. Step 6: Final answer
    x = 47,114.36

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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.