Home / 145,983.11-218,419.95-89,072.47

Finding the Fourth Proportional to 145,983.11, 218,419.95 and 89,072.47

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Solution

The fourth proportional to 145,983.11, 218,419.95 and 89,072.47 is: 133,270.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,983.11 : 218,419.95 = 89,072.47 : x
  2. Step 2: Convert to fraction form
    145,983.11/218,419.95 = 89,072.47/x
  3. Step 3: Cross multiply
    145,983.11x = 218,419.95 × 89,072.47
  4. Step 4: Simplify right side
    145,983.11x = 19,455,203,351.68
  5. Step 5: Solve for x
    x = 19,455,203,351.68/145,983.11
  6. Step 6: Final answer
    x = 133,270.23

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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.