Home / 208,045.04-287,141-118,621.04

Finding the Fourth Proportional to 208,045.04, 287,141 and 118,621.04

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Solution

The fourth proportional to 208,045.04, 287,141 and 118,621.04 is: 163,719.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,045.04 : 287,141 = 118,621.04 : x
  2. Step 2: Convert to fraction form
    208,045.04/287,141 = 118,621.04/x
  3. Step 3: Cross multiply
    208,045.04x = 287,141 × 118,621.04
  4. Step 4: Simplify right side
    208,045.04x = 34,060,964,046.64
  5. Step 5: Solve for x
    x = 34,060,964,046.64/208,045.04
  6. Step 6: Final answer
    x = 163,719.18

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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.