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Finding the Fourth Proportional to 148,577.91, 204,987.65 and 84,870.60

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Solution

The fourth proportional to 148,577.91, 204,987.65 and 84,870.60 is: 117,092.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,577.91 : 204,987.65 = 84,870.60 : x
  2. Step 2: Convert to fraction form
    148,577.91/204,987.65 = 84,870.60/x
  3. Step 3: Cross multiply
    148,577.91x = 204,987.65 × 84,870.60
  4. Step 4: Simplify right side
    148,577.91x = 17,397,424,848.09
  5. Step 5: Solve for x
    x = 17,397,424,848.09/148,577.91
  6. Step 6: Final answer
    x = 117,092.94

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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.