Home / 189,750.35-284,666.51-71,421.35

Finding the Fourth Proportional to 189,750.35, 284,666.51 and 71,421.35

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Solution

The fourth proportional to 189,750.35, 284,666.51 and 71,421.35 is: 107,147.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,750.35 : 284,666.51 = 71,421.35 : x
  2. Step 2: Convert to fraction form
    189,750.35/284,666.51 = 71,421.35/x
  3. Step 3: Cross multiply
    189,750.35x = 284,666.51 × 71,421.35
  4. Step 4: Simplify right side
    189,750.35x = 20,331,265,199.21
  5. Step 5: Solve for x
    x = 20,331,265,199.21/189,750.35
  6. Step 6: Final answer
    x = 107,147.44

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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.