Home / 103,809.11-143,256.57-56,062.46

Finding the Fourth Proportional to 103,809.11, 143,256.57 and 56,062.46

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Solution

The fourth proportional to 103,809.11, 143,256.57 and 56,062.46 is: 77,366.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,809.11 : 143,256.57 = 56,062.46 : x
  2. Step 2: Convert to fraction form
    103,809.11/143,256.57 = 56,062.46/x
  3. Step 3: Cross multiply
    103,809.11x = 143,256.57 × 56,062.46
  4. Step 4: Simplify right side
    103,809.11x = 8,031,315,725.36
  5. Step 5: Solve for x
    x = 8,031,315,725.36/103,809.11
  6. Step 6: Final answer
    x = 77,366.19

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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.