Home / 208,033.55-287,088.35-112,542.30

Finding the Fourth Proportional to 208,033.55, 287,088.35 and 112,542.30

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Solution

The fourth proportional to 208,033.55, 287,088.35 and 112,542.30 is: 155,309.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,033.55 : 287,088.35 = 112,542.30 : x
  2. Step 2: Convert to fraction form
    208,033.55/287,088.35 = 112,542.30/x
  3. Step 3: Cross multiply
    208,033.55x = 287,088.35 × 112,542.30
  4. Step 4: Simplify right side
    208,033.55x = 32,309,583,212.21
  5. Step 5: Solve for x
    x = 32,309,583,212.21/208,033.55
  6. Step 6: Final answer
    x = 155,309.48

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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.