Home / 147,620.30-221,465.59-47,780.51

Finding the Fourth Proportional to 147,620.30, 221,465.59 and 47,780.51

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Solution

The fourth proportional to 147,620.30, 221,465.59 and 47,780.51 is: 71,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,620.30 : 221,465.59 = 47,780.51 : x
  2. Step 2: Convert to fraction form
    147,620.30/221,465.59 = 47,780.51/x
  3. Step 3: Cross multiply
    147,620.30x = 221,465.59 × 47,780.51
  4. Step 4: Simplify right side
    147,620.30x = 10,581,737,730.32
  5. Step 5: Solve for x
    x = 10,581,737,730.32/147,620.30
  6. Step 6: Final answer
    x = 71,682.13

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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.