Finding the Fourth Proportional to 112,970.05, 169,455.65 and 38,090.84
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Solution
The fourth proportional to 112,970.05, 169,455.65 and 38,090.84 is: 57,136.45
Step by Step Solution
- Step 1: Write the proportion equation
112,970.05 : 169,455.65 = 38,090.84 : x - Step 2: Convert to fraction form
112,970.05/169,455.65 = 38,090.84/x - Step 3: Cross multiply
112,970.05x = 169,455.65 × 38,090.84 - Step 4: Simplify right side
112,970.05x = 6,454,707,013.51 - Step 5: Solve for x
x = 6,454,707,013.51/112,970.05 - Step 6: Final answer
x = 57,136.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.