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Finding the Fourth Proportional to 160,148.88, 221,004 and 88,530.72

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Solution

The fourth proportional to 160,148.88, 221,004 and 88,530.72 is: 122,171.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,148.88 : 221,004 = 88,530.72 : x
  2. Step 2: Convert to fraction form
    160,148.88/221,004 = 88,530.72/x
  3. Step 3: Cross multiply
    160,148.88x = 221,004 × 88,530.72
  4. Step 4: Simplify right side
    160,148.88x = 19,565,643,242.88
  5. Step 5: Solve for x
    x = 19,565,643,242.88/160,148.88
  6. Step 6: Final answer
    x = 122,171.59

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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.