Home / 106,421.19-159,656.84-31,541.96

Finding the Fourth Proportional to 106,421.19, 159,656.84 and 31,541.96

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Solution

The fourth proportional to 106,421.19, 159,656.84 and 31,541.96 is: 47,320.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,421.19 : 159,656.84 = 31,541.96 : x
  2. Step 2: Convert to fraction form
    106,421.19/159,656.84 = 31,541.96/x
  3. Step 3: Cross multiply
    106,421.19x = 159,656.84 × 31,541.96
  4. Step 4: Simplify right side
    106,421.19x = 5,035,888,705.01
  5. Step 5: Solve for x
    x = 5,035,888,705.01/106,421.19
  6. Step 6: Final answer
    x = 47,320.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.