Finding the Fourth Proportional to 130,299.63, 179,813.84 and 70,683.63
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Solution
The fourth proportional to 130,299.63, 179,813.84 and 70,683.63 is: 97,543.60
Step by Step Solution
- Step 1: Write the proportion equation
130,299.63 : 179,813.84 = 70,683.63 : x - Step 2: Convert to fraction form
130,299.63/179,813.84 = 70,683.63/x - Step 3: Cross multiply
130,299.63x = 179,813.84 × 70,683.63 - Step 4: Simplify right side
130,299.63x = 12,709,894,582.02 - Step 5: Solve for x
x = 12,709,894,582.02/130,299.63 - Step 6: Final answer
x = 97,543.60
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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.