Home / 103,711.60-143,101.92-61,277.32

Finding the Fourth Proportional to 103,711.60, 143,101.92 and 61,277.32

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Solution

The fourth proportional to 103,711.60, 143,101.92 and 61,277.32 is: 84,550.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,711.60 : 143,101.92 = 61,277.32 : x
  2. Step 2: Convert to fraction form
    103,711.60/143,101.92 = 61,277.32/x
  3. Step 3: Cross multiply
    103,711.60x = 143,101.92 × 61,277.32
  4. Step 4: Simplify right side
    103,711.60x = 8,768,902,144.45
  5. Step 5: Solve for x
    x = 8,768,902,144.45/103,711.60
  6. Step 6: Final answer
    x = 84,550.83

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1.5x scale

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.