Home / 159,030.26-219,463.43-86,433.14

Finding the Fourth Proportional to 159,030.26, 219,463.43 and 86,433.14

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Solution

The fourth proportional to 159,030.26, 219,463.43 and 86,433.14 is: 119,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,030.26 : 219,463.43 = 86,433.14 : x
  2. Step 2: Convert to fraction form
    159,030.26/219,463.43 = 86,433.14/x
  3. Step 3: Cross multiply
    159,030.26x = 219,463.43 × 86,433.14
  4. Step 4: Simplify right side
    159,030.26x = 18,968,911,840.59
  5. Step 5: Solve for x
    x = 18,968,911,840.59/159,030.26
  6. Step 6: Final answer
    x = 119,278.64

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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.