Home / 208,213.36-287,336.73-112,722.10

Finding the Fourth Proportional to 208,213.36, 287,336.73 and 112,722.10

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Solution

The fourth proportional to 208,213.36, 287,336.73 and 112,722.10 is: 155,557.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,213.36 : 287,336.73 = 112,722.10 : x
  2. Step 2: Convert to fraction form
    208,213.36/287,336.73 = 112,722.10/x
  3. Step 3: Cross multiply
    208,213.36x = 287,336.73 × 112,722.10
  4. Step 4: Simplify right side
    208,213.36x = 32,389,199,612.73
  5. Step 5: Solve for x
    x = 32,389,199,612.73/208,213.36
  6. Step 6: Final answer
    x = 155,557.74

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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.