Home / 145,311.45-217,849.56-45,420.23

Finding the Fourth Proportional to 145,311.45, 217,849.56 and 45,420.23

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Solution

The fourth proportional to 145,311.45, 217,849.56 and 45,420.23 is: 68,093.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,311.45 : 217,849.56 = 45,420.23 : x
  2. Step 2: Convert to fraction form
    145,311.45/217,849.56 = 45,420.23/x
  3. Step 3: Cross multiply
    145,311.45x = 217,849.56 × 45,420.23
  4. Step 4: Simplify right side
    145,311.45x = 9,894,776,031.35
  5. Step 5: Solve for x
    x = 9,894,776,031.35/145,311.45
  6. Step 6: Final answer
    x = 68,093.57

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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.