Finding the Fourth Proportional to 105,263.13, 145,360.13 and 67,602.99
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Solution
The fourth proportional to 105,263.13, 145,360.13 and 67,602.99 is: 93,354.43
Step by Step Solution
- Step 1: Write the proportion equation
105,263.13 : 145,360.13 = 67,602.99 : x - Step 2: Convert to fraction form
105,263.13/145,360.13 = 67,602.99/x - Step 3: Cross multiply
105,263.13x = 145,360.13 × 67,602.99 - Step 4: Simplify right side
105,263.13x = 9,826,779,414.79 - Step 5: Solve for x
x = 9,826,779,414.79/105,263.13 - Step 6: Final answer
x = 93,354.43
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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.