Home / 147,730.08-221,664.32-72,809.39

Finding the Fourth Proportional to 147,730.08, 221,664.32 and 72,809.39

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Solution

The fourth proportional to 147,730.08, 221,664.32 and 72,809.39 is: 109,248.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,730.08 : 221,664.32 = 72,809.39 : x
  2. Step 2: Convert to fraction form
    147,730.08/221,664.32 = 72,809.39/x
  3. Step 3: Cross multiply
    147,730.08x = 221,664.32 × 72,809.39
  4. Step 4: Simplify right side
    147,730.08x = 16,139,243,923.96
  5. Step 5: Solve for x
    x = 16,139,243,923.96/147,730.08
  6. Step 6: Final answer
    x = 109,248.19

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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.