Home / 142,055.28-196,054.36-85,497.20

Finding the Fourth Proportional to 142,055.28, 196,054.36 and 85,497.20

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Solution

The fourth proportional to 142,055.28, 196,054.36 and 85,497.20 is: 117,997.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,055.28 : 196,054.36 = 85,497.20 : x
  2. Step 2: Convert to fraction form
    142,055.28/196,054.36 = 85,497.20/x
  3. Step 3: Cross multiply
    142,055.28x = 196,054.36 × 85,497.20
  4. Step 4: Simplify right side
    142,055.28x = 16,762,098,827.79
  5. Step 5: Solve for x
    x = 16,762,098,827.79/142,055.28
  6. Step 6: Final answer
    x = 117,997.01

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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.