Home / 126,479.48-189,817.14-47,665.40

Finding the Fourth Proportional to 126,479.48, 189,817.14 and 47,665.40

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Solution

The fourth proportional to 126,479.48, 189,817.14 and 47,665.40 is: 71,535.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,479.48 : 189,817.14 = 47,665.40 : x
  2. Step 2: Convert to fraction form
    126,479.48/189,817.14 = 47,665.40/x
  3. Step 3: Cross multiply
    126,479.48x = 189,817.14 × 47,665.40
  4. Step 4: Simplify right side
    126,479.48x = 9,047,709,904.96
  5. Step 5: Solve for x
    x = 9,047,709,904.96/126,479.48
  6. Step 6: Final answer
    x = 71,535.00

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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.