Home / 140,000.70-210,001.05-76,796.40

Finding the Fourth Proportional to 140,000.70, 210,001.05 and 76,796.40

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Solution

The fourth proportional to 140,000.70, 210,001.05 and 76,796.40 is: 115,194.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,000.70 : 210,001.05 = 76,796.40 : x
  2. Step 2: Convert to fraction form
    140,000.70/210,001.05 = 76,796.40/x
  3. Step 3: Cross multiply
    140,000.70x = 210,001.05 × 76,796.40
  4. Step 4: Simplify right side
    140,000.70x = 16,127,324,636.22
  5. Step 5: Solve for x
    x = 16,127,324,636.22/140,000.70
  6. Step 6: Final answer
    x = 115,194.60

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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.