Home / 151,116.99-208,541.88-83,138.37

Finding the Fourth Proportional to 151,116.99, 208,541.88 and 83,138.37

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Solution

The fourth proportional to 151,116.99, 208,541.88 and 83,138.37 is: 114,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,116.99 : 208,541.88 = 83,138.37 : x
  2. Step 2: Convert to fraction form
    151,116.99/208,541.88 = 83,138.37/x
  3. Step 3: Cross multiply
    151,116.99x = 208,541.88 × 83,138.37
  4. Step 4: Simplify right side
    151,116.99x = 17,337,831,979.94
  5. Step 5: Solve for x
    x = 17,337,831,979.94/151,116.99
  6. Step 6: Final answer
    x = 114,731.19

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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.