Home / 151,039.24-208,430.75-82,127.20

Finding the Fourth Proportional to 151,039.24, 208,430.75 and 82,127.20

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Solution

The fourth proportional to 151,039.24, 208,430.75 and 82,127.20 is: 113,333.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,039.24 : 208,430.75 = 82,127.20 : x
  2. Step 2: Convert to fraction form
    151,039.24/208,430.75 = 82,127.20/x
  3. Step 3: Cross multiply
    151,039.24x = 208,430.75 × 82,127.20
  4. Step 4: Simplify right side
    151,039.24x = 17,117,833,891.40
  5. Step 5: Solve for x
    x = 17,117,833,891.40/151,039.24
  6. Step 6: Final answer
    x = 113,333.69

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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.