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Finding the Fourth Proportional to 123,036.60, 184,554.90 and 121,870.20

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Solution

The fourth proportional to 123,036.60, 184,554.90 and 121,870.20 is: 182,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,036.60 : 184,554.90 = 121,870.20 : x
  2. Step 2: Convert to fraction form
    123,036.60/184,554.90 = 121,870.20/x
  3. Step 3: Cross multiply
    123,036.60x = 184,554.90 × 121,870.20
  4. Step 4: Simplify right side
    123,036.60x = 22,491,742,573.98
  5. Step 5: Solve for x
    x = 22,491,742,573.98/123,036.60
  6. Step 6: Final answer
    x = 182,805.30

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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.