Home / 208,211.36-287,333.97-112,720.10

Finding the Fourth Proportional to 208,211.36, 287,333.97 and 112,720.10

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Solution

The fourth proportional to 208,211.36, 287,333.97 and 112,720.10 is: 155,554.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,211.36 : 287,333.97 = 112,720.10 : x
  2. Step 2: Convert to fraction form
    208,211.36/287,333.97 = 112,720.10/x
  3. Step 3: Cross multiply
    208,211.36x = 287,333.97 × 112,720.10
  4. Step 4: Simplify right side
    208,211.36x = 32,388,313,831.80
  5. Step 5: Solve for x
    x = 32,388,313,831.80/208,211.36
  6. Step 6: Final answer
    x = 155,554.98

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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.