Home / 140,420.48-210,643.92-51,675.68

Finding the Fourth Proportional to 140,420.48, 210,643.92 and 51,675.68

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Solution

The fourth proportional to 140,420.48, 210,643.92 and 51,675.68 is: 77,518.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,420.48 : 210,643.92 = 51,675.68 : x
  2. Step 2: Convert to fraction form
    140,420.48/210,643.92 = 51,675.68/x
  3. Step 3: Cross multiply
    140,420.48x = 210,643.92 × 51,675.68
  4. Step 4: Simplify right side
    140,420.48x = 10,885,167,803.87
  5. Step 5: Solve for x
    x = 10,885,167,803.87/140,420.48
  6. Step 6: Final answer
    x = 77,518.38

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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.