Home / 132,530.40-182,887.79-72,099.50

Finding the Fourth Proportional to 132,530.40, 182,887.79 and 72,099.50

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Solution

The fourth proportional to 132,530.40, 182,887.79 and 72,099.50 is: 99,495.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,530.40 : 182,887.79 = 72,099.50 : x
  2. Step 2: Convert to fraction form
    132,530.40/182,887.79 = 72,099.50/x
  3. Step 3: Cross multiply
    132,530.40x = 182,887.79 × 72,099.50
  4. Step 4: Simplify right side
    132,530.40x = 13,186,116,940.17
  5. Step 5: Solve for x
    x = 13,186,116,940.17/132,530.40
  6. Step 6: Final answer
    x = 99,495.04

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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.