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Finding the Fourth Proportional to 120,567.69, 166,345.55 and 69,573.74

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Solution

The fourth proportional to 120,567.69, 166,345.55 and 69,573.74 is: 95,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,567.69 : 166,345.55 = 69,573.74 : x
  2. Step 2: Convert to fraction form
    120,567.69/166,345.55 = 69,573.74/x
  3. Step 3: Cross multiply
    120,567.69x = 166,345.55 × 69,573.74
  4. Step 4: Simplify right side
    120,567.69x = 11,573,281,127.16
  5. Step 5: Solve for x
    x = 11,573,281,127.16/120,567.69
  6. Step 6: Final answer
    x = 95,989.91

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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.