Home / 126,155.52-189,297.27-69,985.26

Finding the Fourth Proportional to 126,155.52, 189,297.27 and 69,985.26

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Solution

The fourth proportional to 126,155.52, 189,297.27 and 69,985.26 is: 105,013.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,155.52 : 189,297.27 = 69,985.26 : x
  2. Step 2: Convert to fraction form
    126,155.52/189,297.27 = 69,985.26/x
  3. Step 3: Cross multiply
    126,155.52x = 189,297.27 × 69,985.26
  4. Step 4: Simplify right side
    126,155.52x = 13,248,018,658.24
  5. Step 5: Solve for x
    x = 13,248,018,658.24/126,155.52
  6. Step 6: Final answer
    x = 105,013.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.