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Finding the Fourth Proportional to 140,434.30, 210,214.05 and 101,068.30

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Solution

The fourth proportional to 140,434.30, 210,214.05 and 101,068.30 is: 151,287.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,434.30 : 210,214.05 = 101,068.30 : x
  2. Step 2: Convert to fraction form
    140,434.30/210,214.05 = 101,068.30/x
  3. Step 3: Cross multiply
    140,434.30x = 210,214.05 × 101,068.30
  4. Step 4: Simplify right side
    140,434.30x = 21,245,976,669.62
  5. Step 5: Solve for x
    x = 21,245,976,669.62/140,434.30
  6. Step 6: Final answer
    x = 151,287.66

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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.