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Finding the Fourth Proportional to 160,686.63, 221,747.16 and 88,089.39

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Solution

The fourth proportional to 160,686.63, 221,747.16 and 88,089.39 is: 121,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,686.63 : 221,747.16 = 88,089.39 : x
  2. Step 2: Convert to fraction form
    160,686.63/221,747.16 = 88,089.39/x
  3. Step 3: Cross multiply
    160,686.63x = 221,747.16 × 88,089.39
  4. Step 4: Simplify right side
    160,686.63x = 19,533,571,618.19
  5. Step 5: Solve for x
    x = 19,533,571,618.19/160,686.63
  6. Step 6: Final answer
    x = 121,563.15

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1.5x scale

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.