Home / 140,244.48-210,384-57,127.68

Finding the Fourth Proportional to 140,244.48, 210,384 and 57,127.68

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Solution

The fourth proportional to 140,244.48, 210,384 and 57,127.68 is: 85,698.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,244.48 : 210,384 = 57,127.68 : x
  2. Step 2: Convert to fraction form
    140,244.48/210,384 = 57,127.68/x
  3. Step 3: Cross multiply
    140,244.48x = 210,384 × 57,127.68
  4. Step 4: Simplify right side
    140,244.48x = 12,018,749,829.12
  5. Step 5: Solve for x
    x = 12,018,749,829.12/140,244.48
  6. Step 6: Final answer
    x = 85,698.56

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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.