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Finding the Fourth Proportional to 154,527.48, 213,233.58 and 87,459.48

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Solution

The fourth proportional to 154,527.48, 213,233.58 and 87,459.48 is: 120,685.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,527.48 : 213,233.58 = 87,459.48 : x
  2. Step 2: Convert to fraction form
    154,527.48/213,233.58 = 87,459.48/x
  3. Step 3: Cross multiply
    154,527.48x = 213,233.58 × 87,459.48
  4. Step 4: Simplify right side
    154,527.48x = 18,649,298,025.34
  5. Step 5: Solve for x
    x = 18,649,298,025.34/154,527.48
  6. Step 6: Final answer
    x = 120,685.96

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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.