Home / 208,688.14-287,989.64-118,042.16

Finding the Fourth Proportional to 208,688.14, 287,989.64 and 118,042.16

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Solution

The fourth proportional to 208,688.14, 287,989.64 and 118,042.16 is: 162,898.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,688.14 : 287,989.64 = 118,042.16 : x
  2. Step 2: Convert to fraction form
    208,688.14/287,989.64 = 118,042.16/x
  3. Step 3: Cross multiply
    208,688.14x = 287,989.64 × 118,042.16
  4. Step 4: Simplify right side
    208,688.14x = 33,994,917,133.06
  5. Step 5: Solve for x
    x = 33,994,917,133.06/208,688.14
  6. Step 6: Final answer
    x = 162,898.17

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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.