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Finding the Fourth Proportional to 159,053.94, 219,406.83 and 100,804.11

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Solution

The fourth proportional to 159,053.94, 219,406.83 and 100,804.11 is: 139,054.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,053.94 : 219,406.83 = 100,804.11 : x
  2. Step 2: Convert to fraction form
    159,053.94/219,406.83 = 100,804.11/x
  3. Step 3: Cross multiply
    159,053.94x = 219,406.83 × 100,804.11
  4. Step 4: Simplify right side
    159,053.94x = 22,117,110,226.07
  5. Step 5: Solve for x
    x = 22,117,110,226.07/159,053.94
  6. Step 6: Final answer
    x = 139,054.15

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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.