Home / 132,813.04-183,276.60-72,382.40

Finding the Fourth Proportional to 132,813.04, 183,276.60 and 72,382.40

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Solution

The fourth proportional to 132,813.04, 183,276.60 and 72,382.40 is: 99,884.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,813.04 : 183,276.60 = 72,382.40 : x
  2. Step 2: Convert to fraction form
    132,813.04/183,276.60 = 72,382.40/x
  3. Step 3: Cross multiply
    132,813.04x = 183,276.60 × 72,382.40
  4. Step 4: Simplify right side
    132,813.04x = 13,266,000,171.84
  5. Step 5: Solve for x
    x = 13,266,000,171.84/132,813.04
  6. Step 6: Final answer
    x = 99,884.77

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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.