Finding the Fourth Proportional to 97,506.10, 134,620.95 and 79,643.98
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Solution
The fourth proportional to 97,506.10, 134,620.95 and 79,643.98 is: 109,959.77
Step by Step Solution
- Step 1: Write the proportion equation
97,506.10 : 134,620.95 = 79,643.98 : x - Step 2: Convert to fraction form
97,506.10/134,620.95 = 79,643.98/x - Step 3: Cross multiply
97,506.10x = 134,620.95 × 79,643.98 - Step 4: Simplify right side
97,506.10x = 10,721,748,249.38 - Step 5: Solve for x
x = 10,721,748,249.38/97,506.10 - Step 6: Final answer
x = 109,959.77
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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.