Home / 208,569.51-287,840.66-117,926.35

Finding the Fourth Proportional to 208,569.51, 287,840.66 and 117,926.35

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Solution

The fourth proportional to 208,569.51, 287,840.66 and 117,926.35 is: 162,746.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,569.51 : 287,840.66 = 117,926.35 : x
  2. Step 2: Convert to fraction form
    208,569.51/287,840.66 = 117,926.35/x
  3. Step 3: Cross multiply
    208,569.51x = 287,840.66 × 117,926.35
  4. Step 4: Simplify right side
    208,569.51x = 33,943,997,106.16
  5. Step 5: Solve for x
    x = 33,943,997,106.16/208,569.51
  6. Step 6: Final answer
    x = 162,746.69

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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.