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Finding the Fourth Proportional to 160,475.60, 221,459.80 and 87,881.54

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Solution

The fourth proportional to 160,475.60, 221,459.80 and 87,881.54 is: 121,278.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,475.60 : 221,459.80 = 87,881.54 : x
  2. Step 2: Convert to fraction form
    160,475.60/221,459.80 = 87,881.54/x
  3. Step 3: Cross multiply
    160,475.60x = 221,459.80 × 87,881.54
  4. Step 4: Simplify right side
    160,475.60x = 19,462,228,272.09
  5. Step 5: Solve for x
    x = 19,462,228,272.09/160,475.60
  6. Step 6: Final answer
    x = 121,278.43

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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.