Home / 192,042.50-287,971.54-90,756.25

Finding the Fourth Proportional to 192,042.50, 287,971.54 and 90,756.25

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Solution

The fourth proportional to 192,042.50, 287,971.54 and 90,756.25 is: 136,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,042.50 : 287,971.54 = 90,756.25 : x
  2. Step 2: Convert to fraction form
    192,042.50/287,971.54 = 90,756.25/x
  3. Step 3: Cross multiply
    192,042.50x = 287,971.54 × 90,756.25
  4. Step 4: Simplify right side
    192,042.50x = 26,135,216,130.31
  5. Step 5: Solve for x
    x = 26,135,216,130.31/192,042.50
  6. Step 6: Final answer
    x = 136,090.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.