Home / 147,535.20-221,248.80-47,721.60

Finding the Fourth Proportional to 147,535.20, 221,248.80 and 47,721.60

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Solution

The fourth proportional to 147,535.20, 221,248.80 and 47,721.60 is: 71,564.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,535.20 : 221,248.80 = 47,721.60 : x
  2. Step 2: Convert to fraction form
    147,535.20/221,248.80 = 47,721.60/x
  3. Step 3: Cross multiply
    147,535.20x = 221,248.80 × 47,721.60
  4. Step 4: Simplify right side
    147,535.20x = 10,558,346,734.08
  5. Step 5: Solve for x
    x = 10,558,346,734.08/147,535.20
  6. Step 6: Final answer
    x = 71,564.93

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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.