Finding the Fourth Proportional to 148,308.12, 204,683.18 and 83,780.08
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Solution
The fourth proportional to 148,308.12, 204,683.18 and 83,780.08 is: 115,626.66
Step by Step Solution
- Step 1: Write the proportion equation
148,308.12 : 204,683.18 = 83,780.08 : x - Step 2: Convert to fraction form
148,308.12/204,683.18 = 83,780.08/x - Step 3: Cross multiply
148,308.12x = 204,683.18 × 83,780.08 - Step 4: Simplify right side
148,308.12x = 17,148,373,195.05 - Step 5: Solve for x
x = 17,148,373,195.05/148,308.12 - Step 6: Final answer
x = 115,626.66
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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.