Home / 208,765.96-288,095.40-118,121.16

Finding the Fourth Proportional to 208,765.96, 288,095.40 and 118,121.16

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Solution

The fourth proportional to 208,765.96, 288,095.40 and 118,121.16 is: 163,006.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,765.96 : 288,095.40 = 118,121.16 : x
  2. Step 2: Convert to fraction form
    208,765.96/288,095.40 = 118,121.16/x
  3. Step 3: Cross multiply
    208,765.96x = 288,095.40 × 118,121.16
  4. Step 4: Simplify right side
    208,765.96x = 34,030,162,838.66
  5. Step 5: Solve for x
    x = 34,030,162,838.66/208,765.96
  6. Step 6: Final answer
    x = 163,006.28

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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.