Home / 142,223.58-196,264.26-78,561.24

Finding the Fourth Proportional to 142,223.58, 196,264.26 and 78,561.24

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Solution

The fourth proportional to 142,223.58, 196,264.26 and 78,561.24 is: 108,412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,223.58 : 196,264.26 = 78,561.24 : x
  2. Step 2: Convert to fraction form
    142,223.58/196,264.26 = 78,561.24/x
  3. Step 3: Cross multiply
    142,223.58x = 196,264.26 × 78,561.24
  4. Step 4: Simplify right side
    142,223.58x = 15,418,763,633.28
  5. Step 5: Solve for x
    x = 15,418,763,633.28/142,223.58
  6. Step 6: Final answer
    x = 108,412.15

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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.