Home / 142,137.88-196,141.82-77,594.24

Finding the Fourth Proportional to 142,137.88, 196,141.82 and 77,594.24

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Solution

The fourth proportional to 142,137.88, 196,141.82 and 77,594.24 is: 107,075.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,137.88 : 196,141.82 = 77,594.24 : x
  2. Step 2: Convert to fraction form
    142,137.88/196,141.82 = 77,594.24/x
  3. Step 3: Cross multiply
    142,137.88x = 196,141.82 × 77,594.24
  4. Step 4: Simplify right side
    142,137.88x = 15,219,475,455.12
  5. Step 5: Solve for x
    x = 15,219,475,455.12/142,137.88
  6. Step 6: Final answer
    x = 107,075.44

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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.