Home / 102,048.48-140,849.75-56,742.35

Finding the Fourth Proportional to 102,048.48, 140,849.75 and 56,742.35

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Solution

The fourth proportional to 102,048.48, 140,849.75 and 56,742.35 is: 78,317.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,048.48 : 140,849.75 = 56,742.35 : x
  2. Step 2: Convert to fraction form
    102,048.48/140,849.75 = 56,742.35/x
  3. Step 3: Cross multiply
    102,048.48x = 140,849.75 × 56,742.35
  4. Step 4: Simplify right side
    102,048.48x = 7,992,145,249.52
  5. Step 5: Solve for x
    x = 7,992,145,249.52/102,048.48
  6. Step 6: Final answer
    x = 78,317.14

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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.