Finding the Fourth Proportional to 158,224.60, 218,352.00 and 86,603.08
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Solution
The fourth proportional to 158,224.60, 218,352.00 and 86,603.08 is: 119,513.38
Step by Step Solution
- Step 1: Write the proportion equation
158,224.60 : 218,352.00 = 86,603.08 : x - Step 2: Convert to fraction form
158,224.60/218,352.00 = 86,603.08/x - Step 3: Cross multiply
158,224.60x = 218,352.00 × 86,603.08 - Step 4: Simplify right side
158,224.60x = 18,909,956,053.53 - Step 5: Solve for x
x = 18,909,956,053.53/158,224.60 - Step 6: Final answer
x = 119,513.38
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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.