Home / 189,667.83-284,544.12-71,340.21

Finding the Fourth Proportional to 189,667.83, 284,544.12 and 71,340.21

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Solution

The fourth proportional to 189,667.83, 284,544.12 and 71,340.21 is: 107,026.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,667.83 : 284,544.12 = 71,340.21 : x
  2. Step 2: Convert to fraction form
    189,667.83/284,544.12 = 71,340.21/x
  3. Step 3: Cross multiply
    189,667.83x = 284,544.12 × 71,340.21
  4. Step 4: Simplify right side
    189,667.83x = 20,299,437,275.07
  5. Step 5: Solve for x
    x = 20,299,437,275.07/189,667.83
  6. Step 6: Final answer
    x = 107,026.25

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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.