Home / 142,220.16-196,260.48-78,552.96

Finding the Fourth Proportional to 142,220.16, 196,260.48 and 78,552.96

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Solution

The fourth proportional to 142,220.16, 196,260.48 and 78,552.96 is: 108,401.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,220.16 : 196,260.48 = 78,552.96 : x
  2. Step 2: Convert to fraction form
    142,220.16/196,260.48 = 78,552.96/x
  3. Step 3: Cross multiply
    142,220.16x = 196,260.48 × 78,552.96
  4. Step 4: Simplify right side
    142,220.16x = 15,416,841,635.02
  5. Step 5: Solve for x
    x = 15,416,841,635.02/142,220.16
  6. Step 6: Final answer
    x = 108,401.24

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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.