Home / 104,661.18-144,435.45-64,398.51

Finding the Fourth Proportional to 104,661.18, 144,435.45 and 64,398.51

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Solution

The fourth proportional to 104,661.18, 144,435.45 and 64,398.51 is: 88,871.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,661.18 : 144,435.45 = 64,398.51 : x
  2. Step 2: Convert to fraction form
    104,661.18/144,435.45 = 64,398.51/x
  3. Step 3: Cross multiply
    104,661.18x = 144,435.45 × 64,398.51
  4. Step 4: Simplify right side
    104,661.18x = 9,301,428,012.67
  5. Step 5: Solve for x
    x = 9,301,428,012.67/104,661.18
  6. Step 6: Final answer
    x = 88,871.81

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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.