Home / 103,751.87-143,176.16-58,434.35

Finding the Fourth Proportional to 103,751.87, 143,176.16 and 58,434.35

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Solution

The fourth proportional to 103,751.87, 143,176.16 and 58,434.35 is: 80,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,751.87 : 143,176.16 = 58,434.35 : x
  2. Step 2: Convert to fraction form
    103,751.87/143,176.16 = 58,434.35/x
  3. Step 3: Cross multiply
    103,751.87x = 143,176.16 × 58,434.35
  4. Step 4: Simplify right side
    103,751.87x = 8,366,404,837.04
  5. Step 5: Solve for x
    x = 8,366,404,837.04/103,751.87
  6. Step 6: Final answer
    x = 80,638.60

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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.