Finding the Fourth Proportional to 165,607.95, 228,539.84 and 90,156.99
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Solution
The fourth proportional to 165,607.95, 228,539.84 and 90,156.99 is: 124,417.12
Step by Step Solution
- Step 1: Write the proportion equation
165,607.95 : 228,539.84 = 90,156.99 : x - Step 2: Convert to fraction form
165,607.95/228,539.84 = 90,156.99/x - Step 3: Cross multiply
165,607.95x = 228,539.84 × 90,156.99 - Step 4: Simplify right side
165,607.95x = 20,604,463,618.70 - Step 5: Solve for x
x = 20,604,463,618.70/165,607.95 - Step 6: Final answer
x = 124,417.12
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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.