Finding the Fourth Proportional to 135,031.80, 202,547.70 and 56,137.80
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Solution
The fourth proportional to 135,031.80, 202,547.70 and 56,137.80 is: 84,206.70
Step by Step Solution
- Step 1: Write the proportion equation
135,031.80 : 202,547.70 = 56,137.80 : x - Step 2: Convert to fraction form
135,031.80/202,547.70 = 56,137.80/x - Step 3: Cross multiply
135,031.80x = 202,547.70 × 56,137.80 - Step 4: Simplify right side
135,031.80x = 11,370,582,273.06 - Step 5: Solve for x
x = 11,370,582,273.06/135,031.80 - Step 6: Final answer
x = 84,206.70
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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.