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Finding the Fourth Proportional to 121,204.70, 181,807.05 and 47,332.70

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Solution

The fourth proportional to 121,204.70, 181,807.05 and 47,332.70 is: 70,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,204.70 : 181,807.05 = 47,332.70 : x
  2. Step 2: Convert to fraction form
    121,204.70/181,807.05 = 47,332.70/x
  3. Step 3: Cross multiply
    121,204.70x = 181,807.05 × 47,332.70
  4. Step 4: Simplify right side
    121,204.70x = 8,605,418,555.54
  5. Step 5: Solve for x
    x = 8,605,418,555.54/121,204.70
  6. Step 6: Final answer
    x = 70,999.05

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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.