Home / 144,071.81-215,572.49-90,513.03

Finding the Fourth Proportional to 144,071.81, 215,572.49 and 90,513.03

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Solution

The fourth proportional to 144,071.81, 215,572.49 and 90,513.03 is: 135,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,071.81 : 215,572.49 = 90,513.03 : x
  2. Step 2: Convert to fraction form
    144,071.81/215,572.49 = 90,513.03/x
  3. Step 3: Cross multiply
    144,071.81x = 215,572.49 × 90,513.03
  4. Step 4: Simplify right side
    144,071.81x = 19,512,120,054.74
  5. Step 5: Solve for x
    x = 19,512,120,054.74/144,071.81
  6. Step 6: Final answer
    x = 135,433.30

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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.