Home / 122,342.15-168,326.56-99,165.41

Finding the Fourth Proportional to 122,342.15, 168,326.56 and 99,165.41

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Solution

The fourth proportional to 122,342.15, 168,326.56 and 99,165.41 is: 136,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,342.15 : 168,326.56 = 99,165.41 : x
  2. Step 2: Convert to fraction form
    122,342.15/168,326.56 = 99,165.41/x
  3. Step 3: Cross multiply
    122,342.15x = 168,326.56 × 99,165.41
  4. Step 4: Simplify right side
    122,342.15x = 16,692,172,638.87
  5. Step 5: Solve for x
    x = 16,692,172,638.87/122,342.15
  6. Step 6: Final answer
    x = 136,438.45

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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.