Finding the Fourth Proportional to 88,447.68, 121,970.88 and 75,055.68
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Solution
The fourth proportional to 88,447.68, 121,970.88 and 75,055.68 is: 103,503.08
Step by Step Solution
- Step 1: Write the proportion equation
88,447.68 : 121,970.88 = 75,055.68 : x - Step 2: Convert to fraction form
88,447.68/121,970.88 = 75,055.68/x - Step 3: Cross multiply
88,447.68x = 121,970.88 × 75,055.68 - Step 4: Simplify right side
88,447.68x = 9,154,607,338.60 - Step 5: Solve for x
x = 9,154,607,338.60/88,447.68 - Step 6: Final answer
x = 103,503.08
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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.