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Finding the Fourth Proportional to 152,777.38, 210,871.54 and 104,398.89

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Solution

The fourth proportional to 152,777.38, 210,871.54 and 104,398.89 is: 144,096.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,777.38 : 210,871.54 = 104,398.89 : x
  2. Step 2: Convert to fraction form
    152,777.38/210,871.54 = 104,398.89/x
  3. Step 3: Cross multiply
    152,777.38x = 210,871.54 × 104,398.89
  4. Step 4: Simplify right side
    152,777.38x = 22,014,754,708.59
  5. Step 5: Solve for x
    x = 22,014,754,708.59/152,777.38
  6. Step 6: Final answer
    x = 144,096.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.