Home / 142,532.46-213,302.97-86,341.14

Finding the Fourth Proportional to 142,532.46, 213,302.97 and 86,341.14

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Solution

The fourth proportional to 142,532.46, 213,302.97 and 86,341.14 is: 129,211.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,532.46 : 213,302.97 = 86,341.14 : x
  2. Step 2: Convert to fraction form
    142,532.46/213,302.97 = 86,341.14/x
  3. Step 3: Cross multiply
    142,532.46x = 213,302.97 × 86,341.14
  4. Step 4: Simplify right side
    142,532.46x = 18,416,821,595.19
  5. Step 5: Solve for x
    x = 18,416,821,595.19/142,532.46
  6. Step 6: Final answer
    x = 129,211.42

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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.