Finding the Fourth Proportional to 97,699.47, 134,885.75 and 74,994.99
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Solution
The fourth proportional to 97,699.47, 134,885.75 and 74,994.99 is: 103,539.51
Step by Step Solution
- Step 1: Write the proportion equation
97,699.47 : 134,885.75 = 74,994.99 : x - Step 2: Convert to fraction form
97,699.47/134,885.75 = 74,994.99/x - Step 3: Cross multiply
97,699.47x = 134,885.75 × 74,994.99 - Step 4: Simplify right side
97,699.47x = 10,115,755,097.42 - Step 5: Solve for x
x = 10,115,755,097.42/97,699.47 - Step 6: Final answer
x = 103,539.51
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1.5x scale
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.