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Finding the Fourth Proportional to 160,788.51, 221,886.63 and 88,189.91

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Solution

The fourth proportional to 160,788.51, 221,886.63 and 88,189.91 is: 121,701.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,788.51 : 221,886.63 = 88,189.91 : x
  2. Step 2: Convert to fraction form
    160,788.51/221,886.63 = 88,189.91/x
  3. Step 3: Cross multiply
    160,788.51x = 221,886.63 × 88,189.91
  4. Step 4: Simplify right side
    160,788.51x = 19,568,163,148.69
  5. Step 5: Solve for x
    x = 19,568,163,148.69/160,788.51
  6. Step 6: Final answer
    x = 121,701.25

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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.