Home / 132,158.34-182,378.61-71,728.98

Finding the Fourth Proportional to 132,158.34, 182,378.61 and 71,728.98

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Solution

The fourth proportional to 132,158.34, 182,378.61 and 71,728.98 is: 98,986.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,158.34 : 182,378.61 = 71,728.98 : x
  2. Step 2: Convert to fraction form
    132,158.34/182,378.61 = 71,728.98/x
  3. Step 3: Cross multiply
    132,158.34x = 182,378.61 × 71,728.98
  4. Step 4: Simplify right side
    132,158.34x = 13,081,831,669.12
  5. Step 5: Solve for x
    x = 13,081,831,669.12/132,158.34
  6. Step 6: Final answer
    x = 98,986.05

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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.