Home / 159,034.51-219,379.55-100,784.58

Finding the Fourth Proportional to 159,034.51, 219,379.55 and 100,784.58

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Solution

The fourth proportional to 159,034.51, 219,379.55 and 100,784.58 is: 139,026.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,034.51 : 219,379.55 = 100,784.58 : x
  2. Step 2: Convert to fraction form
    159,034.51/219,379.55 = 100,784.58/x
  3. Step 3: Cross multiply
    159,034.51x = 219,379.55 × 100,784.58
  4. Step 4: Simplify right side
    159,034.51x = 22,110,075,807.34
  5. Step 5: Solve for x
    x = 22,110,075,807.34/159,034.51
  6. Step 6: Final answer
    x = 139,026.91

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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.