Home / 190,055.20-284,974.80-71,730.40

Finding the Fourth Proportional to 190,055.20, 284,974.80 and 71,730.40

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Solution

The fourth proportional to 190,055.20, 284,974.80 and 71,730.40 is: 107,554.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,055.20 : 284,974.80 = 71,730.40 : x
  2. Step 2: Convert to fraction form
    190,055.20/284,974.80 = 71,730.40/x
  3. Step 3: Cross multiply
    190,055.20x = 284,974.80 × 71,730.40
  4. Step 4: Simplify right side
    190,055.20x = 20,441,356,393.92
  5. Step 5: Solve for x
    x = 20,441,356,393.92/190,055.20
  6. Step 6: Final answer
    x = 107,554.84

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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.