Home / 142,792.19-196,989.81-91,795.45

Finding the Fourth Proportional to 142,792.19, 196,989.81 and 91,795.45

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Solution

The fourth proportional to 142,792.19, 196,989.81 and 91,795.45 is: 126,636.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,792.19 : 196,989.81 = 91,795.45 : x
  2. Step 2: Convert to fraction form
    142,792.19/196,989.81 = 91,795.45/x
  3. Step 3: Cross multiply
    142,792.19x = 196,989.81 × 91,795.45
  4. Step 4: Simplify right side
    142,792.19x = 18,082,768,728.31
  5. Step 5: Solve for x
    x = 18,082,768,728.31/142,792.19
  6. Step 6: Final answer
    x = 126,636.96

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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.