Home / 151,117.99-208,543.26-83,139.37

Finding the Fourth Proportional to 151,117.99, 208,543.26 and 83,139.37

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Solution

The fourth proportional to 151,117.99, 208,543.26 and 83,139.37 is: 114,732.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,117.99 : 208,543.26 = 83,139.37 : x
  2. Step 2: Convert to fraction form
    151,117.99/208,543.26 = 83,139.37/x
  3. Step 3: Cross multiply
    151,117.99x = 208,543.26 × 83,139.37
  4. Step 4: Simplify right side
    151,117.99x = 17,338,155,254.15
  5. Step 5: Solve for x
    x = 17,338,155,254.15/151,117.99
  6. Step 6: Final answer
    x = 114,732.57

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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.