Finding the Fourth Proportional to 106,681.08, 147,214.08 and 66,393.84
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Solution
The fourth proportional to 106,681.08, 147,214.08 and 66,393.84 is: 91,619.88
Step by Step Solution
- Step 1: Write the proportion equation
106,681.08 : 147,214.08 = 66,393.84 : x - Step 2: Convert to fraction form
106,681.08/147,214.08 = 66,393.84/x - Step 3: Cross multiply
106,681.08x = 147,214.08 × 66,393.84 - Step 4: Simplify right side
106,681.08x = 9,774,108,073.27 - Step 5: Solve for x
x = 9,774,108,073.27/106,681.08 - Step 6: Final answer
x = 91,619.88
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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.