Home / 190,767.87-286,135.20-72,440.10

Finding the Fourth Proportional to 190,767.87, 286,135.20 and 72,440.10

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Solution

The fourth proportional to 190,767.87, 286,135.20 and 72,440.10 is: 108,653.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,767.87 : 286,135.20 = 72,440.10 : x
  2. Step 2: Convert to fraction form
    190,767.87/286,135.20 = 72,440.10/x
  3. Step 3: Cross multiply
    190,767.87x = 286,135.20 × 72,440.10
  4. Step 4: Simplify right side
    190,767.87x = 20,727,662,501.52
  5. Step 5: Solve for x
    x = 20,727,662,501.52/190,767.87
  6. Step 6: Final answer
    x = 108,653.84

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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.