Finding the Fourth Proportional to 148,899.24, 205,690.14 and 135,446.76
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Solution
The fourth proportional to 148,899.24, 205,690.14 and 135,446.76 is: 187,106.82
Step by Step Solution
- Step 1: Write the proportion equation
148,899.24 : 205,690.14 = 135,446.76 : x - Step 2: Convert to fraction form
148,899.24/205,690.14 = 135,446.76/x - Step 3: Cross multiply
148,899.24x = 205,690.14 × 135,446.76 - Step 4: Simplify right side
148,899.24x = 27,860,063,026.95 - Step 5: Solve for x
x = 27,860,063,026.95/148,899.24 - Step 6: Final answer
x = 187,106.82
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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.