Finding the Fourth Proportional to 135,030.60, 202,545.90 and 84,948.30
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Solution
The fourth proportional to 135,030.60, 202,545.90 and 84,948.30 is: 127,422.45
Step by Step Solution
- Step 1: Write the proportion equation
135,030.60 : 202,545.90 = 84,948.30 : x - Step 2: Convert to fraction form
135,030.60/202,545.90 = 84,948.30/x - Step 3: Cross multiply
135,030.60x = 202,545.90 × 84,948.30 - Step 4: Simplify right side
135,030.60x = 17,205,929,876.97 - Step 5: Solve for x
x = 17,205,929,876.97/135,030.60 - Step 6: Final answer
x = 127,422.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.