Home / 142,901.40-197,194.32-79,236.84

Finding the Fourth Proportional to 142,901.40, 197,194.32 and 79,236.84

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Solution

The fourth proportional to 142,901.40, 197,194.32 and 79,236.84 is: 109,341.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,901.40 : 197,194.32 = 79,236.84 : x
  2. Step 2: Convert to fraction form
    142,901.40/197,194.32 = 79,236.84/x
  3. Step 3: Cross multiply
    142,901.40x = 197,194.32 × 79,236.84
  4. Step 4: Simplify right side
    142,901.40x = 15,625,054,782.75
  5. Step 5: Solve for x
    x = 15,625,054,782.75/142,901.40
  6. Step 6: Final answer
    x = 109,341.51

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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.