Home / 147,734.51-221,670.96-72,813.81

Finding the Fourth Proportional to 147,734.51, 221,670.96 and 72,813.81

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Solution

The fourth proportional to 147,734.51, 221,670.96 and 72,813.81 is: 109,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,734.51 : 221,670.96 = 72,813.81 : x
  2. Step 2: Convert to fraction form
    147,734.51/221,670.96 = 72,813.81/x
  3. Step 3: Cross multiply
    147,734.51x = 221,670.96 × 72,813.81
  4. Step 4: Simplify right side
    147,734.51x = 16,140,707,163.96
  5. Step 5: Solve for x
    x = 16,140,707,163.96/147,734.51
  6. Step 6: Final answer
    x = 109,254.82

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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.