Finding the Fourth Proportional to 117,070.50, 161,557.68 and 63,355.50
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Solution
The fourth proportional to 117,070.50, 161,557.68 and 63,355.50 is: 87,430.80
Step by Step Solution
- Step 1: Write the proportion equation
117,070.50 : 161,557.68 = 63,355.50 : x - Step 2: Convert to fraction form
117,070.50/161,557.68 = 63,355.50/x - Step 3: Cross multiply
117,070.50x = 161,557.68 × 63,355.50 - Step 4: Simplify right side
117,070.50x = 10,235,567,595.24 - Step 5: Solve for x
x = 10,235,567,595.24/117,070.50 - Step 6: Final answer
x = 87,430.80
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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.