Home / 208,845.48-287,988.84-123,946.14

Finding the Fourth Proportional to 208,845.48, 287,988.84 and 123,946.14

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Solution

The fourth proportional to 208,845.48, 287,988.84 and 123,946.14 is: 170,916.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,845.48 : 287,988.84 = 123,946.14 : x
  2. Step 2: Convert to fraction form
    208,845.48/287,988.84 = 123,946.14/x
  3. Step 3: Cross multiply
    208,845.48x = 287,988.84 × 123,946.14
  4. Step 4: Simplify right side
    208,845.48x = 35,695,105,081.08
  5. Step 5: Solve for x
    x = 35,695,105,081.08/208,845.48
  6. Step 6: Final answer
    x = 170,916.34

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1.5x scale

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.