Home / 190,423.28-262,903.56-122,558.12

Finding the Fourth Proportional to 190,423.28, 262,903.56 and 122,558.12

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Solution

The fourth proportional to 190,423.28, 262,903.56 and 122,558.12 is: 169,207.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,423.28 : 262,903.56 = 122,558.12 : x
  2. Step 2: Convert to fraction form
    190,423.28/262,903.56 = 122,558.12/x
  3. Step 3: Cross multiply
    190,423.28x = 262,903.56 × 122,558.12
  4. Step 4: Simplify right side
    190,423.28x = 32,220,966,054.91
  5. Step 5: Solve for x
    x = 32,220,966,054.91/190,423.28
  6. Step 6: Final answer
    x = 169,207.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.