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Finding the Fourth Proportional to 101,030.45, 151,709.70 and 67,897.40

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Solution

The fourth proportional to 101,030.45, 151,709.70 and 67,897.40 is: 101,956.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,030.45 : 151,709.70 = 67,897.40 : x
  2. Step 2: Convert to fraction form
    101,030.45/151,709.70 = 67,897.40/x
  3. Step 3: Cross multiply
    101,030.45x = 151,709.70 × 67,897.40
  4. Step 4: Simplify right side
    101,030.45x = 10,300,694,184.78
  5. Step 5: Solve for x
    x = 10,300,694,184.78/101,030.45
  6. Step 6: Final answer
    x = 101,956.33

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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.