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Finding the Fourth Proportional to 140,151.66, 210,102.50 and 51,384.48

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Solution

The fourth proportional to 140,151.66, 210,102.50 and 51,384.48 is: 77,030.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,151.66 : 210,102.50 = 51,384.48 : x
  2. Step 2: Convert to fraction form
    140,151.66/210,102.50 = 51,384.48/x
  3. Step 3: Cross multiply
    140,151.66x = 210,102.50 × 51,384.48
  4. Step 4: Simplify right side
    140,151.66x = 10,796,007,709.20
  5. Step 5: Solve for x
    x = 10,796,007,709.20/140,151.66
  6. Step 6: Final answer
    x = 77,030.89

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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.