Home / 264,031.10-396,043.05-86,543.90

Finding the Fourth Proportional to 264,031.10, 396,043.05 and 86,543.90

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Solution

The fourth proportional to 264,031.10, 396,043.05 and 86,543.90 is: 129,814.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,031.10 : 396,043.05 = 86,543.90 : x
  2. Step 2: Convert to fraction form
    264,031.10/396,043.05 = 86,543.90/x
  3. Step 3: Cross multiply
    264,031.10x = 396,043.05 × 86,543.90
  4. Step 4: Simplify right side
    264,031.10x = 34,275,110,114.90
  5. Step 5: Solve for x
    x = 34,275,110,114.90/264,031.10
  6. Step 6: Final answer
    x = 129,814.67

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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.