Home / 145,417.99-218,131.85-40,228.15

Finding the Fourth Proportional to 145,417.99, 218,131.85 and 40,228.15

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Solution

The fourth proportional to 145,417.99, 218,131.85 and 40,228.15 is: 60,343.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,417.99 : 218,131.85 = 40,228.15 : x
  2. Step 2: Convert to fraction form
    145,417.99/218,131.85 = 40,228.15/x
  3. Step 3: Cross multiply
    145,417.99x = 218,131.85 × 40,228.15
  4. Step 4: Simplify right side
    145,417.99x = 8,775,041,649.86
  5. Step 5: Solve for x
    x = 8,775,041,649.86/145,417.99
  6. Step 6: Final answer
    x = 60,343.58

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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.