Home / 208,691.07-287,993.67-118,045.08

Finding the Fourth Proportional to 208,691.07, 287,993.67 and 118,045.08

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Solution

The fourth proportional to 208,691.07, 287,993.67 and 118,045.08 is: 162,902.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,691.07 : 287,993.67 = 118,045.08 : x
  2. Step 2: Convert to fraction form
    208,691.07/287,993.67 = 118,045.08/x
  3. Step 3: Cross multiply
    208,691.07x = 287,993.67 × 118,045.08
  4. Step 4: Simplify right side
    208,691.07x = 33,996,235,814.64
  5. Step 5: Solve for x
    x = 33,996,235,814.64/208,691.07
  6. Step 6: Final answer
    x = 162,902.21

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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.