Home / 190,835.60-286,253.40-155,406.20

Finding the Fourth Proportional to 190,835.60, 286,253.40 and 155,406.20

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Solution

The fourth proportional to 190,835.60, 286,253.40 and 155,406.20 is: 233,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,835.60 : 286,253.40 = 155,406.20 : x
  2. Step 2: Convert to fraction form
    190,835.60/286,253.40 = 155,406.20/x
  3. Step 3: Cross multiply
    190,835.60x = 286,253.40 × 155,406.20
  4. Step 4: Simplify right side
    190,835.60x = 44,485,553,131.08
  5. Step 5: Solve for x
    x = 44,485,553,131.08/190,835.60
  6. Step 6: Final answer
    x = 233,109.30

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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.