Finding the Fourth Proportional to 105,328.08, 145,355.04 and 62,878.68
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Solution
The fourth proportional to 105,328.08, 145,355.04 and 62,878.68 is: 86,773.95
Step by Step Solution
- Step 1: Write the proportion equation
105,328.08 : 145,355.04 = 62,878.68 : x - Step 2: Convert to fraction form
105,328.08/145,355.04 = 62,878.68/x - Step 3: Cross multiply
105,328.08x = 145,355.04 × 62,878.68 - Step 4: Simplify right side
105,328.08x = 9,139,733,046.55 - Step 5: Solve for x
x = 9,139,733,046.55/105,328.08 - Step 6: Final answer
x = 86,773.95
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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.