Home / 121,875,529.10-168,188,232.03-69,665,695.82

Finding the Fourth Proportional to 121,875,529.10, 168,188,232.03 and 69,665,695.82

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Solution

The fourth proportional to 121,875,529.10, 168,188,232.03 and 69,665,695.82 is: 96,138,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,875,529.10 : 168,188,232.03 = 69,665,695.82 : x
  2. Step 2: Convert to fraction form
    121,875,529.10/168,188,232.03 = 69,665,695.82/x
  3. Step 3: Cross multiply
    121,875,529.10x = 168,188,232.03 × 69,665,695.82
  4. Step 4: Simplify right side
    121,875,529.10x = 11,716,950,213,105,560
  5. Step 5: Solve for x
    x = 11,716,950,213,105,560/121,875,529.10
  6. Step 6: Final answer
    x = 96,138,661.30

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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.