Home / 190,999.15-287,608.51-141,430.39

Finding the Fourth Proportional to 190,999.15, 287,608.51 and 141,430.39

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Solution

The fourth proportional to 190,999.15, 287,608.51 and 141,430.39 is: 212,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,999.15 : 287,608.51 = 141,430.39 : x
  2. Step 2: Convert to fraction form
    190,999.15/287,608.51 = 141,430.39/x
  3. Step 3: Cross multiply
    190,999.15x = 287,608.51 × 141,430.39
  4. Step 4: Simplify right side
    190,999.15x = 40,676,583,736.62
  5. Step 5: Solve for x
    x = 40,676,583,736.62/190,999.15
  6. Step 6: Final answer
    x = 212,967.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.