Finding the Fourth Proportional to 148,771.05, 205,303.80 and 81,703.05
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Solution
The fourth proportional to 148,771.05, 205,303.80 and 81,703.05 is: 112,750.07
Step by Step Solution
- Step 1: Write the proportion equation
148,771.05 : 205,303.80 = 81,703.05 : x - Step 2: Convert to fraction form
148,771.05/205,303.80 = 81,703.05/x - Step 3: Cross multiply
148,771.05x = 205,303.80 × 81,703.05 - Step 4: Simplify right side
148,771.05x = 16,773,946,636.59 - Step 5: Solve for x
x = 16,773,946,636.59/148,771.05 - Step 6: Final answer
x = 112,750.07
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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.