Home / 142,244.45-196,301.30-78,586.35

Finding the Fourth Proportional to 142,244.45, 196,301.30 and 78,586.35

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Solution

The fourth proportional to 142,244.45, 196,301.30 and 78,586.35 is: 108,451.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,244.45 : 196,301.30 = 78,586.35 : x
  2. Step 2: Convert to fraction form
    142,244.45/196,301.30 = 78,586.35/x
  3. Step 3: Cross multiply
    142,244.45x = 196,301.30 × 78,586.35
  4. Step 4: Simplify right side
    142,244.45x = 15,426,601,292.82
  5. Step 5: Solve for x
    x = 15,426,601,292.82/142,244.45
  6. Step 6: Final answer
    x = 108,451.34

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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.