Home / 147,640.40-221,482.20-47,783.60

Finding the Fourth Proportional to 147,640.40, 221,482.20 and 47,783.60

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Solution

The fourth proportional to 147,640.40, 221,482.20 and 47,783.60 is: 71,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,640.40 : 221,482.20 = 47,783.60 : x
  2. Step 2: Convert to fraction form
    147,640.40/221,482.20 = 47,783.60/x
  3. Step 3: Cross multiply
    147,640.40x = 221,482.20 × 47,783.60
  4. Step 4: Simplify right side
    147,640.40x = 10,583,216,851.92
  5. Step 5: Solve for x
    x = 10,583,216,851.92/147,640.40
  6. Step 6: Final answer
    x = 71,682.39

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1.5x scale

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.