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Finding the Fourth Proportional to 148,601.60, 205,066.80 and 84,935.60

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Solution

The fourth proportional to 148,601.60, 205,066.80 and 84,935.60 is: 117,209.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,601.60 : 205,066.80 = 84,935.60 : x
  2. Step 2: Convert to fraction form
    148,601.60/205,066.80 = 84,935.60/x
  3. Step 3: Cross multiply
    148,601.60x = 205,066.80 × 84,935.60
  4. Step 4: Simplify right side
    148,601.60x = 17,417,471,698.08
  5. Step 5: Solve for x
    x = 17,417,471,698.08/148,601.60
  6. Step 6: Final answer
    x = 117,209.18

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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.