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Finding the Fourth Proportional to 140,300.66, 210,521.39 and 65,426.69

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Solution

The fourth proportional to 140,300.66, 210,521.39 and 65,426.69 is: 98,172.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,300.66 : 210,521.39 = 65,426.69 : x
  2. Step 2: Convert to fraction form
    140,300.66/210,521.39 = 65,426.69/x
  3. Step 3: Cross multiply
    140,300.66x = 210,521.39 × 65,426.69
  4. Step 4: Simplify right side
    140,300.66x = 13,773,716,342.16
  5. Step 5: Solve for x
    x = 13,773,716,342.16/140,300.66
  6. Step 6: Final answer
    x = 98,172.86

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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.