Home / 189,445.71-261,416.46-104,557.30

Finding the Fourth Proportional to 189,445.71, 261,416.46 and 104,557.30

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Solution

The fourth proportional to 189,445.71, 261,416.46 and 104,557.30 is: 144,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,445.71 : 261,416.46 = 104,557.30 : x
  2. Step 2: Convert to fraction form
    189,445.71/261,416.46 = 104,557.30/x
  3. Step 3: Cross multiply
    189,445.71x = 261,416.46 × 104,557.30
  4. Step 4: Simplify right side
    189,445.71x = 27,332,999,233.16
  5. Step 5: Solve for x
    x = 27,332,999,233.16/189,445.71
  6. Step 6: Final answer
    x = 144,278.80

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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.