Home / 142,581.47-213,751.91-89,874.77

Finding the Fourth Proportional to 142,581.47, 213,751.91 and 89,874.77

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Solution

The fourth proportional to 142,581.47, 213,751.91 and 89,874.77 is: 134,736.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,581.47 : 213,751.91 = 89,874.77 : x
  2. Step 2: Convert to fraction form
    142,581.47/213,751.91 = 89,874.77/x
  3. Step 3: Cross multiply
    142,581.47x = 213,751.91 × 89,874.77
  4. Step 4: Simplify right side
    142,581.47x = 19,210,902,904.24
  5. Step 5: Solve for x
    x = 19,210,902,904.24/142,581.47
  6. Step 6: Final answer
    x = 134,736.33

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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.