Home / 145,361.16-218,039.58-40,177.80

Finding the Fourth Proportional to 145,361.16, 218,039.58 and 40,177.80

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Solution

The fourth proportional to 145,361.16, 218,039.58 and 40,177.80 is: 60,266.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,361.16 : 218,039.58 = 40,177.80 : x
  2. Step 2: Convert to fraction form
    145,361.16/218,039.58 = 40,177.80/x
  3. Step 3: Cross multiply
    145,361.16x = 218,039.58 × 40,177.80
  4. Step 4: Simplify right side
    145,361.16x = 8,760,350,637.32
  5. Step 5: Solve for x
    x = 8,760,350,637.32/145,361.16
  6. Step 6: Final answer
    x = 60,266.10

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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.