Home / 145,757.40-218,636.10-83,384.16

Finding the Fourth Proportional to 145,757.40, 218,636.10 and 83,384.16

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Solution

The fourth proportional to 145,757.40, 218,636.10 and 83,384.16 is: 125,076.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,757.40 : 218,636.10 = 83,384.16 : x
  2. Step 2: Convert to fraction form
    145,757.40/218,636.10 = 83,384.16/x
  3. Step 3: Cross multiply
    145,757.40x = 218,636.10 × 83,384.16
  4. Step 4: Simplify right side
    145,757.40x = 18,230,787,544.18
  5. Step 5: Solve for x
    x = 18,230,787,544.18/145,757.40
  6. Step 6: Final answer
    x = 125,076.24

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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.