Finding the Fourth Proportional to 103,135.13, 154,746.80 and 43,177.61
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Solution
The fourth proportional to 103,135.13, 154,746.80 and 43,177.61 is: 64,784.88
Step by Step Solution
- Step 1: Write the proportion equation
103,135.13 : 154,746.80 = 43,177.61 : x - Step 2: Convert to fraction form
103,135.13/154,746.80 = 43,177.61/x - Step 3: Cross multiply
103,135.13x = 154,746.80 × 43,177.61 - Step 4: Simplify right side
103,135.13x = 6,681,596,979.15 - Step 5: Solve for x
x = 6,681,596,979.15/103,135.13 - Step 6: Final answer
x = 64,784.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.