Finding the Fourth Proportional to 112,547.80, 155,293.50 and 62,237.08
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Solution
The fourth proportional to 112,547.80, 155,293.50 and 62,237.08 is: 85,874.75
Step by Step Solution
- Step 1: Write the proportion equation
112,547.80 : 155,293.50 = 62,237.08 : x - Step 2: Convert to fraction form
112,547.80/155,293.50 = 62,237.08/x - Step 3: Cross multiply
112,547.80x = 155,293.50 × 62,237.08 - Step 4: Simplify right side
112,547.80x = 9,665,013,982.98 - Step 5: Solve for x
x = 9,665,013,982.98/112,547.80 - Step 6: Final answer
x = 85,874.75
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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.