Home / 113,124.20-169,528.66-85,011.42

Finding the Fourth Proportional to 113,124.20, 169,528.66 and 85,011.42

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Solution

The fourth proportional to 113,124.20, 169,528.66 and 85,011.42 is: 127,398.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,124.20 : 169,528.66 = 85,011.42 : x
  2. Step 2: Convert to fraction form
    113,124.20/169,528.66 = 85,011.42/x
  3. Step 3: Cross multiply
    113,124.20x = 169,528.66 × 85,011.42
  4. Step 4: Simplify right side
    113,124.20x = 14,411,872,302.80
  5. Step 5: Solve for x
    x = 14,411,872,302.80/113,124.20
  6. Step 6: Final answer
    x = 127,398.67

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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.