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Finding the Fourth Proportional to 109,397.00, 150,975.75 and 61,002.20

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Solution

The fourth proportional to 109,397.00, 150,975.75 and 61,002.20 is: 84,187.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,397.00 : 150,975.75 = 61,002.20 : x
  2. Step 2: Convert to fraction form
    109,397.00/150,975.75 = 61,002.20/x
  3. Step 3: Cross multiply
    109,397.00x = 150,975.75 × 61,002.20
  4. Step 4: Simplify right side
    109,397.00x = 9,209,852,141.77
  5. Step 5: Solve for x
    x = 9,209,852,141.77/109,397.00
  6. Step 6: Final answer
    x = 84,187.43

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1.5x scale

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.