Finding the Fourth Proportional to 105,336.08, 145,366.08 and 62,886.68
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Solution
The fourth proportional to 105,336.08, 145,366.08 and 62,886.68 is: 86,784.99
Step by Step Solution
- Step 1: Write the proportion equation
105,336.08 : 145,366.08 = 62,886.68 : x - Step 2: Convert to fraction form
105,336.08/145,366.08 = 62,886.68/x - Step 3: Cross multiply
105,336.08x = 145,366.08 × 62,886.68 - Step 4: Simplify right side
105,336.08x = 9,141,590,155.81 - Step 5: Solve for x
x = 9,141,590,155.81/105,336.08 - Step 6: Final answer
x = 86,784.99
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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.