Home / 147,256.80-221,000.40-68,380.80

Finding the Fourth Proportional to 147,256.80, 221,000.40 and 68,380.80

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Solution

The fourth proportional to 147,256.80, 221,000.40 and 68,380.80 is: 102,624.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,256.80 : 221,000.40 = 68,380.80 : x
  2. Step 2: Convert to fraction form
    147,256.80/221,000.40 = 68,380.80/x
  3. Step 3: Cross multiply
    147,256.80x = 221,000.40 × 68,380.80
  4. Step 4: Simplify right side
    147,256.80x = 15,112,184,152.32
  5. Step 5: Solve for x
    x = 15,112,184,152.32/147,256.80
  6. Step 6: Final answer
    x = 102,624.69

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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.