Home / 154,728.16-232,109.60-138,835.49

Finding the Fourth Proportional to 154,728.16, 232,109.60 and 138,835.49

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Solution

The fourth proportional to 154,728.16, 232,109.60 and 138,835.49 is: 208,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,728.16 : 232,109.60 = 138,835.49 : x
  2. Step 2: Convert to fraction form
    154,728.16/232,109.60 = 138,835.49/x
  3. Step 3: Cross multiply
    154,728.16x = 232,109.60 × 138,835.49
  4. Step 4: Simplify right side
    154,728.16x = 32,225,048,194.98
  5. Step 5: Solve for x
    x = 32,225,048,194.98/154,728.16
  6. Step 6: Final answer
    x = 208,268.80

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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.