Home / 142,334.37-196,425.62-77,807.18

Finding the Fourth Proportional to 142,334.37, 196,425.62 and 77,807.18

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Solution

The fourth proportional to 142,334.37, 196,425.62 and 77,807.18 is: 107,376.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,334.37 : 196,425.62 = 77,807.18 : x
  2. Step 2: Convert to fraction form
    142,334.37/196,425.62 = 77,807.18/x
  3. Step 3: Cross multiply
    142,334.37x = 196,425.62 × 77,807.18
  4. Step 4: Simplify right side
    142,334.37x = 15,283,322,200.79
  5. Step 5: Solve for x
    x = 15,283,322,200.79/142,334.37
  6. Step 6: Final answer
    x = 107,376.19

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1.5x scale

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.