Finding the Fourth Proportional to 97,815.68, 134,985.12 and 53,103.68
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Solution
The fourth proportional to 97,815.68, 134,985.12 and 53,103.68 is: 73,282.80
Step by Step Solution
- Step 1: Write the proportion equation
97,815.68 : 134,985.12 = 53,103.68 : x - Step 2: Convert to fraction form
97,815.68/134,985.12 = 53,103.68/x - Step 3: Cross multiply
97,815.68x = 134,985.12 × 53,103.68 - Step 4: Simplify right side
97,815.68x = 7,168,206,617.24 - Step 5: Solve for x
x = 7,168,206,617.24/97,815.68 - Step 6: Final answer
x = 73,282.80
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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.