Home / 75,812.60-113,967.96-70,332.16

Finding the Fourth Proportional to 75,812.60, 113,967.96 and 70,332.16

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Solution

The fourth proportional to 75,812.60, 113,967.96 and 70,332.16 is: 105,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,812.60 : 113,967.96 = 70,332.16 : x
  2. Step 2: Convert to fraction form
    75,812.60/113,967.96 = 70,332.16/x
  3. Step 3: Cross multiply
    75,812.60x = 113,967.96 × 70,332.16
  4. Step 4: Simplify right side
    75,812.60x = 8,015,612,797.59
  5. Step 5: Solve for x
    x = 8,015,612,797.59/75,812.60
  6. Step 6: Final answer
    x = 105,729.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.