Finding the Fourth Proportional to 158,177.95, 218,285.53 and 86,557.95
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Solution
The fourth proportional to 158,177.95, 218,285.53 and 86,557.95 is: 119,449.95
Step by Step Solution
- Step 1: Write the proportion equation
158,177.95 : 218,285.53 = 86,557.95 : x - Step 2: Convert to fraction form
158,177.95/218,285.53 = 86,557.95/x - Step 3: Cross multiply
158,177.95x = 218,285.53 × 86,557.95 - Step 4: Simplify right side
158,177.95x = 18,894,347,991.46 - Step 5: Solve for x
x = 18,894,347,991.46/158,177.95 - Step 6: Final answer
x = 119,449.95
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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.