Finding the Fourth Proportional to 148,585.68, 205,017.96 and 88,129.80
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Solution
The fourth proportional to 148,585.68, 205,017.96 and 88,129.80 is: 121,601.17
Step by Step Solution
- Step 1: Write the proportion equation
148,585.68 : 205,017.96 = 88,129.80 : x - Step 2: Convert to fraction form
148,585.68/205,017.96 = 88,129.80/x - Step 3: Cross multiply
148,585.68x = 205,017.96 × 88,129.80 - Step 4: Simplify right side
148,585.68x = 18,068,191,811.21 - Step 5: Solve for x
x = 18,068,191,811.21/148,585.68 - Step 6: Final answer
x = 121,601.17
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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.