Home / 122,121.24-168,539.82-70,440.36

Finding the Fourth Proportional to 122,121.24, 168,539.82 and 70,440.36

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Solution

The fourth proportional to 122,121.24, 168,539.82 and 70,440.36 is: 97,214.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,121.24 : 168,539.82 = 70,440.36 : x
  2. Step 2: Convert to fraction form
    122,121.24/168,539.82 = 70,440.36/x
  3. Step 3: Cross multiply
    122,121.24x = 168,539.82 × 70,440.36
  4. Step 4: Simplify right side
    122,121.24x = 11,872,005,595.14
  5. Step 5: Solve for x
    x = 11,872,005,595.14/122,121.24
  6. Step 6: Final answer
    x = 97,214.91

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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.