Finding the Fourth Proportional to 153,781.16, 212,232.84 and 93,337.88
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Solution
The fourth proportional to 153,781.16, 212,232.84 and 93,337.88 is: 128,815.28
Step by Step Solution
- Step 1: Write the proportion equation
153,781.16 : 212,232.84 = 93,337.88 : x - Step 2: Convert to fraction form
153,781.16/212,232.84 = 93,337.88/x - Step 3: Cross multiply
153,781.16x = 212,232.84 × 93,337.88 - Step 4: Simplify right side
153,781.16x = 19,809,363,351.98 - Step 5: Solve for x
x = 19,809,363,351.98/153,781.16 - Step 6: Final answer
x = 128,815.28
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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.