Finding the Fourth Proportional to 134,645.36, 185,802.14 and 74,212.67
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Solution
The fourth proportional to 134,645.36, 185,802.14 and 74,212.67 is: 102,408.82
Step by Step Solution
- Step 1: Write the proportion equation
134,645.36 : 185,802.14 = 74,212.67 : x - Step 2: Convert to fraction form
134,645.36/185,802.14 = 74,212.67/x - Step 3: Cross multiply
134,645.36x = 185,802.14 × 74,212.67 - Step 4: Simplify right side
134,645.36x = 13,788,871,601.04 - Step 5: Solve for x
x = 13,788,871,601.04/134,645.36 - Step 6: Final answer
x = 102,408.82
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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.