Home / 103,811.93-143,260.42-56,065.28

Finding the Fourth Proportional to 103,811.93, 143,260.42 and 56,065.28

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Solution

The fourth proportional to 103,811.93, 143,260.42 and 56,065.28 is: 77,370.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,811.93 : 143,260.42 = 56,065.28 : x
  2. Step 2: Convert to fraction form
    103,811.93/143,260.42 = 56,065.28/x
  3. Step 3: Cross multiply
    103,811.93x = 143,260.42 × 56,065.28
  4. Step 4: Simplify right side
    103,811.93x = 8,031,935,279.89
  5. Step 5: Solve for x
    x = 8,031,935,279.89/103,811.93
  6. Step 6: Final answer
    x = 77,370.06

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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.