Home / 103,809.18-143,256.68-56,062.52

Finding the Fourth Proportional to 103,809.18, 143,256.68 and 56,062.52

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Solution

The fourth proportional to 103,809.18, 143,256.68 and 56,062.52 is: 77,366.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,809.18 : 143,256.68 = 56,062.52 : x
  2. Step 2: Convert to fraction form
    103,809.18/143,256.68 = 56,062.52/x
  3. Step 3: Cross multiply
    103,809.18x = 143,256.68 × 56,062.52
  4. Step 4: Simplify right side
    103,809.18x = 8,031,330,487.63
  5. Step 5: Solve for x
    x = 8,031,330,487.63/103,809.18
  6. Step 6: Final answer
    x = 77,366.28

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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.