Finding the Fourth Proportional to 136,750.32, 188,860.95 and 104,136.08
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Solution
The fourth proportional to 136,750.32, 188,860.95 and 104,136.08 is: 143,818.59
Step by Step Solution
- Step 1: Write the proportion equation
136,750.32 : 188,860.95 = 104,136.08 : x - Step 2: Convert to fraction form
136,750.32/188,860.95 = 104,136.08/x - Step 3: Cross multiply
136,750.32x = 188,860.95 × 104,136.08 - Step 4: Simplify right side
136,750.32x = 19,667,238,053.77 - Step 5: Solve for x
x = 19,667,238,053.77/136,750.32 - Step 6: Final answer
x = 143,818.59
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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.