Finding the Fourth Proportional to 156,321.68, 215,798.30 and 104,727.62
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Solution
The fourth proportional to 156,321.68, 215,798.30 and 104,727.62 is: 144,573.95
Step by Step Solution
- Step 1: Write the proportion equation
156,321.68 : 215,798.30 = 104,727.62 : x - Step 2: Convert to fraction form
156,321.68/215,798.30 = 104,727.62/x - Step 3: Cross multiply
156,321.68x = 215,798.30 × 104,727.62 - Step 4: Simplify right side
156,321.68x = 22,600,041,541.87 - Step 5: Solve for x
x = 22,600,041,541.87/156,321.68 - Step 6: Final answer
x = 144,573.95
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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.