Home / 140,000.47-210,068.28-68,884.54

Finding the Fourth Proportional to 140,000.47, 210,068.28 and 68,884.54

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Solution

The fourth proportional to 140,000.47, 210,068.28 and 68,884.54 is: 103,360.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,000.47 : 210,068.28 = 68,884.54 : x
  2. Step 2: Convert to fraction form
    140,000.47/210,068.28 = 68,884.54/x
  3. Step 3: Cross multiply
    140,000.47x = 210,068.28 × 68,884.54
  4. Step 4: Simplify right side
    140,000.47x = 14,470,456,311.22
  5. Step 5: Solve for x
    x = 14,470,456,311.22/140,000.47
  6. Step 6: Final answer
    x = 103,360.06

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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.