Finding the Fourth Proportional to 102,407.10, 153,610.65 and 84,911.10
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Solution
The fourth proportional to 102,407.10, 153,610.65 and 84,911.10 is: 127,366.65
Step by Step Solution
- Step 1: Write the proportion equation
102,407.10 : 153,610.65 = 84,911.10 : x - Step 2: Convert to fraction form
102,407.10/153,610.65 = 84,911.10/x - Step 3: Cross multiply
102,407.10x = 153,610.65 × 84,911.10 - Step 4: Simplify right side
102,407.10x = 13,043,249,263.22 - Step 5: Solve for x
x = 13,043,249,263.22/102,407.10 - Step 6: Final answer
x = 127,366.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.