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Finding the Fourth Proportional to 133,031.40, 199,611.90 and 101,430.60

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Solution

The fourth proportional to 133,031.40, 199,611.90 and 101,430.60 is: 152,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,031.40 : 199,611.90 = 101,430.60 : x
  2. Step 2: Convert to fraction form
    133,031.40/199,611.90 = 101,430.60/x
  3. Step 3: Cross multiply
    133,031.40x = 199,611.90 × 101,430.60
  4. Step 4: Simplify right side
    133,031.40x = 20,246,754,784.14
  5. Step 5: Solve for x
    x = 20,246,754,784.14/133,031.40
  6. Step 6: Final answer
    x = 152,195.31

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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.