Home / 142,386.39-196,532.10-88,639.47

Finding the Fourth Proportional to 142,386.39, 196,532.10 and 88,639.47

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Solution

The fourth proportional to 142,386.39, 196,532.10 and 88,639.47 is: 122,346.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,386.39 : 196,532.10 = 88,639.47 : x
  2. Step 2: Convert to fraction form
    142,386.39/196,532.10 = 88,639.47/x
  3. Step 3: Cross multiply
    142,386.39x = 196,532.10 × 88,639.47
  4. Step 4: Simplify right side
    142,386.39x = 17,420,501,181.99
  5. Step 5: Solve for x
    x = 17,420,501,181.99/142,386.39
  6. Step 6: Final answer
    x = 122,346.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.