Home / 108,566.40-162,857.70-38,436.60

Finding the Fourth Proportional to 108,566.40, 162,857.70 and 38,436.60

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Solution

The fourth proportional to 108,566.40, 162,857.70 and 38,436.60 is: 57,657.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,566.40 : 162,857.70 = 38,436.60 : x
  2. Step 2: Convert to fraction form
    108,566.40/162,857.70 = 38,436.60/x
  3. Step 3: Cross multiply
    108,566.40x = 162,857.70 × 38,436.60
  4. Step 4: Simplify right side
    108,566.40x = 6,259,696,271.82
  5. Step 5: Solve for x
    x = 6,259,696,271.82/108,566.40
  6. Step 6: Final answer
    x = 57,657.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.