Home / 142,035.42-196,015.23-81,625.62

Finding the Fourth Proportional to 142,035.42, 196,015.23 and 81,625.62

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Solution

The fourth proportional to 142,035.42, 196,015.23 and 81,625.62 is: 112,647.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,035.42 : 196,015.23 = 81,625.62 : x
  2. Step 2: Convert to fraction form
    142,035.42/196,015.23 = 81,625.62/x
  3. Step 3: Cross multiply
    142,035.42x = 196,015.23 × 81,625.62
  4. Step 4: Simplify right side
    142,035.42x = 15,999,864,678.19
  5. Step 5: Solve for x
    x = 15,999,864,678.19/142,035.42
  6. Step 6: Final answer
    x = 112,647.01

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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.