Home / 208,206.48-287,322.92-112,710.72

Finding the Fourth Proportional to 208,206.48, 287,322.92 and 112,710.72

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Solution

The fourth proportional to 208,206.48, 287,322.92 and 112,710.72 is: 155,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,206.48 : 287,322.92 = 112,710.72 : x
  2. Step 2: Convert to fraction form
    208,206.48/287,322.92 = 112,710.72/x
  3. Step 3: Cross multiply
    208,206.48x = 287,322.92 × 112,710.72
  4. Step 4: Simplify right side
    208,206.48x = 32,384,373,185.70
  5. Step 5: Solve for x
    x = 32,384,373,185.70/208,206.48
  6. Step 6: Final answer
    x = 155,539.70

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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.