Home / 208,010.18-287,053.80-112,516.58

Finding the Fourth Proportional to 208,010.18, 287,053.80 and 112,516.58

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Solution

The fourth proportional to 208,010.18, 287,053.80 and 112,516.58 is: 155,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,010.18 : 287,053.80 = 112,516.58 : x
  2. Step 2: Convert to fraction form
    208,010.18/287,053.80 = 112,516.58/x
  3. Step 3: Cross multiply
    208,010.18x = 287,053.80 × 112,516.58
  4. Step 4: Simplify right side
    208,010.18x = 32,298,311,852.00
  5. Step 5: Solve for x
    x = 32,298,311,852.00/208,010.18
  6. Step 6: Final answer
    x = 155,272.75

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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.