Home / 189,225.19-261,125.18-104,342.23

Finding the Fourth Proportional to 189,225.19, 261,125.18 and 104,342.23

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Solution

The fourth proportional to 189,225.19, 261,125.18 and 104,342.23 is: 143,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,225.19 : 261,125.18 = 104,342.23 : x
  2. Step 2: Convert to fraction form
    189,225.19/261,125.18 = 104,342.23/x
  3. Step 3: Cross multiply
    189,225.19x = 261,125.18 × 104,342.23
  4. Step 4: Simplify right side
    189,225.19x = 27,246,383,068.64
  5. Step 5: Solve for x
    x = 27,246,383,068.64/189,225.19
  6. Step 6: Final answer
    x = 143,989.20

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Double scale
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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.