Home / 208,421.33-287,621.69-112,927.95

Finding the Fourth Proportional to 208,421.33, 287,621.69 and 112,927.95

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Solution

The fourth proportional to 208,421.33, 287,621.69 and 112,927.95 is: 155,840.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,421.33 : 287,621.69 = 112,927.95 : x
  2. Step 2: Convert to fraction form
    208,421.33/287,621.69 = 112,927.95/x
  3. Step 3: Cross multiply
    208,421.33x = 287,621.69 × 112,927.95
  4. Step 4: Simplify right side
    208,421.33x = 32,480,527,262.60
  5. Step 5: Solve for x
    x = 32,480,527,262.60/208,421.33
  6. Step 6: Final answer
    x = 155,840.71

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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.