Finding the Fourth Proportional to 86,924.80, 130,156.80 and 68,492.80
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Solution
The fourth proportional to 86,924.80, 130,156.80 and 68,492.80 is: 102,557.66
Step by Step Solution
- Step 1: Write the proportion equation
86,924.80 : 130,156.80 = 68,492.80 : x - Step 2: Convert to fraction form
86,924.80/130,156.80 = 68,492.80/x - Step 3: Cross multiply
86,924.80x = 130,156.80 × 68,492.80 - Step 4: Simplify right side
86,924.80x = 8,914,803,671.04 - Step 5: Solve for x
x = 8,914,803,671.04/86,924.80 - Step 6: Final answer
x = 102,557.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.