Home / 208,158.26-287,258.87-112,665.60

Finding the Fourth Proportional to 208,158.26, 287,258.87 and 112,665.60

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Solution

The fourth proportional to 208,158.26, 287,258.87 and 112,665.60 is: 155,478.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,158.26 : 287,258.87 = 112,665.60 : x
  2. Step 2: Convert to fraction form
    208,158.26/287,258.87 = 112,665.60/x
  3. Step 3: Cross multiply
    208,158.26x = 287,258.87 × 112,665.60
  4. Step 4: Simplify right side
    208,158.26x = 32,364,193,225.54
  5. Step 5: Solve for x
    x = 32,364,193,225.54/208,158.26
  6. Step 6: Final answer
    x = 155,478.79

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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.