Finding the Fourth Proportional to 112,347.81, 155,040.18 and 63,948.08
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Solution
The fourth proportional to 112,347.81, 155,040.18 and 63,948.08 is: 88,248.47
Step by Step Solution
- Step 1: Write the proportion equation
112,347.81 : 155,040.18 = 63,948.08 : x - Step 2: Convert to fraction form
112,347.81/155,040.18 = 63,948.08/x - Step 3: Cross multiply
112,347.81x = 155,040.18 × 63,948.08 - Step 4: Simplify right side
112,347.81x = 9,914,521,981.65 - Step 5: Solve for x
x = 9,914,521,981.65/112,347.81 - Step 6: Final answer
x = 88,248.47
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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.