Home / 190,009.40-284,835.90-71,760.20

Finding the Fourth Proportional to 190,009.40, 284,835.90 and 71,760.20

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Solution

The fourth proportional to 190,009.40, 284,835.90 and 71,760.20 is: 107,573.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,009.40 : 284,835.90 = 71,760.20 : x
  2. Step 2: Convert to fraction form
    190,009.40/284,835.90 = 71,760.20/x
  3. Step 3: Cross multiply
    190,009.40x = 284,835.90 × 71,760.20
  4. Step 4: Simplify right side
    190,009.40x = 20,439,881,151.18
  5. Step 5: Solve for x
    x = 20,439,881,151.18/190,009.40
  6. Step 6: Final answer
    x = 107,573.00

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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.