Finding the Fourth Proportional to 130,696.88, 180,416.84 and 88,312.82
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Solution
The fourth proportional to 130,696.88, 180,416.84 and 88,312.82 is: 121,908.95
Step by Step Solution
- Step 1: Write the proportion equation
130,696.88 : 180,416.84 = 88,312.82 : x - Step 2: Convert to fraction form
130,696.88/180,416.84 = 88,312.82/x - Step 3: Cross multiply
130,696.88x = 180,416.84 × 88,312.82 - Step 4: Simplify right side
130,696.88x = 15,933,118,572.24 - Step 5: Solve for x
x = 15,933,118,572.24/130,696.88 - Step 6: Final answer
x = 121,908.95
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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.