Finding the Fourth Proportional to 153,317.18, 211,552.62 and 88,763.42
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Solution
The fourth proportional to 153,317.18, 211,552.62 and 88,763.42 is: 122,478.99
Step by Step Solution
- Step 1: Write the proportion equation
153,317.18 : 211,552.62 = 88,763.42 : x - Step 2: Convert to fraction form
153,317.18/211,552.62 = 88,763.42/x - Step 3: Cross multiply
153,317.18x = 211,552.62 × 88,763.42 - Step 4: Simplify right side
153,317.18x = 18,778,134,061.16 - Step 5: Solve for x
x = 18,778,134,061.16/153,317.18 - Step 6: Final answer
x = 122,478.99
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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.