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Finding the Fourth Proportional to 120,726.40, 181,154.40 and 50,612.80

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Solution

The fourth proportional to 120,726.40, 181,154.40 and 50,612.80 is: 75,946.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,726.40 : 181,154.40 = 50,612.80 : x
  2. Step 2: Convert to fraction form
    120,726.40/181,154.40 = 50,612.80/x
  3. Step 3: Cross multiply
    120,726.40x = 181,154.40 × 50,612.80
  4. Step 4: Simplify right side
    120,726.40x = 9,168,731,416.32
  5. Step 5: Solve for x
    x = 9,168,731,416.32/120,726.40
  6. Step 6: Final answer
    x = 75,946.37

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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.