Home / 145,417.53-218,131.15-40,227.69

Finding the Fourth Proportional to 145,417.53, 218,131.15 and 40,227.69

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Solution

The fourth proportional to 145,417.53, 218,131.15 and 40,227.69 is: 60,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,417.53 : 218,131.15 = 40,227.69 : x
  2. Step 2: Convert to fraction form
    145,417.53/218,131.15 = 40,227.69/x
  3. Step 3: Cross multiply
    145,417.53x = 218,131.15 × 40,227.69
  4. Step 4: Simplify right side
    145,417.53x = 8,774,911,090.32
  5. Step 5: Solve for x
    x = 8,774,911,090.32/145,417.53
  6. Step 6: Final answer
    x = 60,342.87

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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.