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Finding the Fourth Proportional to 101,527.88, 152,379.31 and 70,385.00

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Solution

The fourth proportional to 101,527.88, 152,379.31 and 70,385.00 is: 105,638.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,527.88 : 152,379.31 = 70,385.00 : x
  2. Step 2: Convert to fraction form
    101,527.88/152,379.31 = 70,385.00/x
  3. Step 3: Cross multiply
    101,527.88x = 152,379.31 × 70,385.00
  4. Step 4: Simplify right side
    101,527.88x = 10,725,217,917.23
  5. Step 5: Solve for x
    x = 10,725,217,917.23/101,527.88
  6. Step 6: Final answer
    x = 105,638.15

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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.