Finding the Fourth Proportional to 149,820.04, 206,750.10 and 86,156.20
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Solution
The fourth proportional to 149,820.04, 206,750.10 and 86,156.20 is: 118,894.66
Step by Step Solution
- Step 1: Write the proportion equation
149,820.04 : 206,750.10 = 86,156.20 : x - Step 2: Convert to fraction form
149,820.04/206,750.10 = 86,156.20/x - Step 3: Cross multiply
149,820.04x = 206,750.10 × 86,156.20 - Step 4: Simplify right side
149,820.04x = 17,812,802,965.62 - Step 5: Solve for x
x = 17,812,802,965.62/149,820.04 - Step 6: Final answer
x = 118,894.66
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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.