Finding the Fourth Proportional to 103,903.08, 155,854.62 and 83,257.80
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Solution
The fourth proportional to 103,903.08, 155,854.62 and 83,257.80 is: 124,886.70
Step by Step Solution
- Step 1: Write the proportion equation
103,903.08 : 155,854.62 = 83,257.80 : x - Step 2: Convert to fraction form
103,903.08/155,854.62 = 83,257.80/x - Step 3: Cross multiply
103,903.08x = 155,854.62 × 83,257.80 - Step 4: Simplify right side
103,903.08x = 12,976,112,781.04 - Step 5: Solve for x
x = 12,976,112,781.04/103,903.08 - Step 6: Final answer
x = 124,886.70
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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.