Finding the Fourth Proportional to 98,153.35, 135,448.66 and 54,545.75
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Solution
The fourth proportional to 98,153.35, 135,448.66 and 54,545.75 is: 75,271.49
Step by Step Solution
- Step 1: Write the proportion equation
98,153.35 : 135,448.66 = 54,545.75 : x - Step 2: Convert to fraction form
98,153.35/135,448.66 = 54,545.75/x - Step 3: Cross multiply
98,153.35x = 135,448.66 × 54,545.75 - Step 4: Simplify right side
98,153.35x = 7,388,148,746.20 - Step 5: Solve for x
x = 7,388,148,746.20/98,153.35 - Step 6: Final answer
x = 75,271.49
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1.5x scale
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.