Finding the Fourth Proportional to 135,660.01, 187,303.59 and 84,750.31
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Solution
The fourth proportional to 135,660.01, 187,303.59 and 84,750.31 is: 117,013.39
Step by Step Solution
- Step 1: Write the proportion equation
135,660.01 : 187,303.59 = 84,750.31 : x - Step 2: Convert to fraction form
135,660.01/187,303.59 = 84,750.31/x - Step 3: Cross multiply
135,660.01x = 187,303.59 × 84,750.31 - Step 4: Simplify right side
135,660.01x = 15,874,037,316.61 - Step 5: Solve for x
x = 15,874,037,316.61/135,660.01 - Step 6: Final answer
x = 117,013.39
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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.