Home / 208,135.36-287,226.74-112,642.04

Finding the Fourth Proportional to 208,135.36, 287,226.74 and 112,642.04

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Solution

The fourth proportional to 208,135.36, 287,226.74 and 112,642.04 is: 155,445.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,135.36 : 287,226.74 = 112,642.04 : x
  2. Step 2: Convert to fraction form
    208,135.36/287,226.74 = 112,642.04/x
  3. Step 3: Cross multiply
    208,135.36x = 287,226.74 × 112,642.04
  4. Step 4: Simplify right side
    208,135.36x = 32,353,805,936.15
  5. Step 5: Solve for x
    x = 32,353,805,936.15/208,135.36
  6. Step 6: Final answer
    x = 155,445.98

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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.