Home / 115,364,171.12-159,032,943.96-87,814,114.16

Finding the Fourth Proportional to 115,364,171.12, 159,032,943.96 and 87,814,114.16

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Solution

The fourth proportional to 115,364,171.12, 159,032,943.96 and 87,814,114.16 is: 121,054,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,364,171.12 : 159,032,943.96 = 87,814,114.16 : x
  2. Step 2: Convert to fraction form
    115,364,171.12/159,032,943.96 = 87,814,114.16/x
  3. Step 3: Cross multiply
    115,364,171.12x = 159,032,943.96 × 87,814,114.16
  4. Step 4: Simplify right side
    115,364,171.12x = 13,965,337,096,104,322
  5. Step 5: Solve for x
    x = 13,965,337,096,104,322/115,364,171.12
  6. Step 6: Final answer
    x = 121,054,370.35

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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.