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Finding the Fourth Proportional to 188,485.07, 260,102.49 and 103,601.39

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Solution

The fourth proportional to 188,485.07, 260,102.49 and 103,601.39 is: 142,966.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,485.07 : 260,102.49 = 103,601.39 : x
  2. Step 2: Convert to fraction form
    188,485.07/260,102.49 = 103,601.39/x
  3. Step 3: Cross multiply
    188,485.07x = 260,102.49 × 103,601.39
  4. Step 4: Simplify right side
    188,485.07x = 26,946,979,506.46
  5. Step 5: Solve for x
    x = 26,946,979,506.46/188,485.07
  6. Step 6: Final answer
    x = 142,966.12

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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.