Finding the Fourth Proportional to 118,613.84, 163,683.08 and 70,856.08
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Solution
The fourth proportional to 118,613.84, 163,683.08 and 70,856.08 is: 97,778.99
Step by Step Solution
- Step 1: Write the proportion equation
118,613.84 : 163,683.08 = 70,856.08 : x - Step 2: Convert to fraction form
118,613.84/163,683.08 = 70,856.08/x - Step 3: Cross multiply
118,613.84x = 163,683.08 × 70,856.08 - Step 4: Simplify right side
118,613.84x = 11,597,941,411.13 - Step 5: Solve for x
x = 11,597,941,411.13/118,613.84 - Step 6: Final answer
x = 97,778.99
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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.