Finding the Fourth Proportional to 130,774.23, 180,522.68 and 88,390.17
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Solution
The fourth proportional to 130,774.23, 180,522.68 and 88,390.17 is: 122,015.09
Step by Step Solution
- Step 1: Write the proportion equation
130,774.23 : 180,522.68 = 88,390.17 : x - Step 2: Convert to fraction form
130,774.23/180,522.68 = 88,390.17/x - Step 3: Cross multiply
130,774.23x = 180,522.68 × 88,390.17 - Step 4: Simplify right side
130,774.23x = 15,956,429,932.10 - Step 5: Solve for x
x = 15,956,429,932.10/130,774.23 - Step 6: Final answer
x = 122,015.09
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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.