Home / 142,441.19-196,560.85-77,897.60

Finding the Fourth Proportional to 142,441.19, 196,560.85 and 77,897.60

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Solution

The fourth proportional to 142,441.19, 196,560.85 and 77,897.60 is: 107,494.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,441.19 : 196,560.85 = 77,897.60 : x
  2. Step 2: Convert to fraction form
    142,441.19/196,560.85 = 77,897.60/x
  3. Step 3: Cross multiply
    142,441.19x = 196,560.85 × 77,897.60
  4. Step 4: Simplify right side
    142,441.19x = 15,311,618,468.96
  5. Step 5: Solve for x
    x = 15,311,618,468.96/142,441.19
  6. Step 6: Final answer
    x = 107,494.32

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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.