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Finding the Fourth Proportional to 140,117.08, 210,169.66 and 65,211.41

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Solution

The fourth proportional to 140,117.08, 210,169.66 and 65,211.41 is: 97,814.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,117.08 : 210,169.66 = 65,211.41 : x
  2. Step 2: Convert to fraction form
    140,117.08/210,169.66 = 65,211.41/x
  3. Step 3: Cross multiply
    140,117.08x = 210,169.66 × 65,211.41
  4. Step 4: Simplify right side
    140,117.08x = 13,705,459,867.82
  5. Step 5: Solve for x
    x = 13,705,459,867.82/140,117.08
  6. Step 6: Final answer
    x = 97,814.34

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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.