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Finding the Fourth Proportional to 188,411.39, 260,004.80 and 103,526.63

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Solution

The fourth proportional to 188,411.39, 260,004.80 and 103,526.63 is: 142,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,411.39 : 260,004.80 = 103,526.63 : x
  2. Step 2: Convert to fraction form
    188,411.39/260,004.80 = 103,526.63/x
  3. Step 3: Cross multiply
    188,411.39x = 260,004.80 × 103,526.63
  4. Step 4: Simplify right side
    188,411.39x = 26,917,420,727.82
  5. Step 5: Solve for x
    x = 26,917,420,727.82/188,411.39
  6. Step 6: Final answer
    x = 142,865.15

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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.