Home / 122,931.72-169,631.73-69,215.36

Finding the Fourth Proportional to 122,931.72, 169,631.73 and 69,215.36

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Solution

The fourth proportional to 122,931.72, 169,631.73 and 69,215.36 is: 95,509.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,931.72 : 169,631.73 = 69,215.36 : x
  2. Step 2: Convert to fraction form
    122,931.72/169,631.73 = 69,215.36/x
  3. Step 3: Cross multiply
    122,931.72x = 169,631.73 × 69,215.36
  4. Step 4: Simplify right side
    122,931.72x = 11,741,120,411.21
  5. Step 5: Solve for x
    x = 11,741,120,411.21/122,931.72
  6. Step 6: Final answer
    x = 95,509.28

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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.