Home / 145,433.88-218,126.52-40,263.48

Finding the Fourth Proportional to 145,433.88, 218,126.52 and 40,263.48

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Solution

The fourth proportional to 145,433.88, 218,126.52 and 40,263.48 is: 60,388.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,433.88 : 218,126.52 = 40,263.48 : x
  2. Step 2: Convert to fraction form
    145,433.88/218,126.52 = 40,263.48/x
  3. Step 3: Cross multiply
    145,433.88x = 218,126.52 × 40,263.48
  4. Step 4: Simplify right side
    145,433.88x = 8,782,532,775.49
  5. Step 5: Solve for x
    x = 8,782,532,775.49/145,433.88
  6. Step 6: Final answer
    x = 60,388.49

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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.