Home / 154,875.72-213,727.56-85,964.48

Finding the Fourth Proportional to 154,875.72, 213,727.56 and 85,964.48

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Solution

The fourth proportional to 154,875.72, 213,727.56 and 85,964.48 is: 118,630.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,875.72 : 213,727.56 = 85,964.48 : x
  2. Step 2: Convert to fraction form
    154,875.72/213,727.56 = 85,964.48/x
  3. Step 3: Cross multiply
    154,875.72x = 213,727.56 × 85,964.48
  4. Step 4: Simplify right side
    154,875.72x = 18,372,978,557.07
  5. Step 5: Solve for x
    x = 18,372,978,557.07/154,875.72
  6. Step 6: Final answer
    x = 118,630.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.