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Finding the Fourth Proportional to 121,351.60, 181,897.80 and 46,442.80

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Solution

The fourth proportional to 121,351.60, 181,897.80 and 46,442.80 is: 69,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,351.60 : 181,897.80 = 46,442.80 : x
  2. Step 2: Convert to fraction form
    121,351.60/181,897.80 = 46,442.80/x
  3. Step 3: Cross multiply
    121,351.60x = 181,897.80 × 46,442.80
  4. Step 4: Simplify right side
    121,351.60x = 8,447,843,145.84
  5. Step 5: Solve for x
    x = 8,447,843,145.84/121,351.60
  6. Step 6: Final answer
    x = 69,614.60

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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.