Home / 103,795.20-143,212.80-59,097.60

Finding the Fourth Proportional to 103,795.20, 143,212.80 and 59,097.60

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Solution

The fourth proportional to 103,795.20, 143,212.80 and 59,097.60 is: 81,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,795.20 : 143,212.80 = 59,097.60 : x
  2. Step 2: Convert to fraction form
    103,795.20/143,212.80 = 59,097.60/x
  3. Step 3: Cross multiply
    103,795.20x = 143,212.80 × 59,097.60
  4. Step 4: Simplify right side
    103,795.20x = 8,463,532,769.28
  5. Step 5: Solve for x
    x = 8,463,532,769.28/103,795.20
  6. Step 6: Final answer
    x = 81,540.70

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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.