Home / 207,715.56-286,640.70-131,275.66

Finding the Fourth Proportional to 207,715.56, 286,640.70 and 131,275.66

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Solution

The fourth proportional to 207,715.56, 286,640.70 and 131,275.66 is: 181,156.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,715.56 : 286,640.70 = 131,275.66 : x
  2. Step 2: Convert to fraction form
    207,715.56/286,640.70 = 131,275.66/x
  3. Step 3: Cross multiply
    207,715.56x = 286,640.70 × 131,275.66
  4. Step 4: Simplify right side
    207,715.56x = 37,628,947,075.36
  5. Step 5: Solve for x
    x = 37,628,947,075.36/207,715.56
  6. Step 6: Final answer
    x = 181,156.13

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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.