Finding the Fourth Proportional to 147,053.74, 202,952.19 and 86,621.26
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Solution
The fourth proportional to 147,053.74, 202,952.19 and 86,621.26 is: 119,547.96
Step by Step Solution
- Step 1: Write the proportion equation
147,053.74 : 202,952.19 = 86,621.26 : x - Step 2: Convert to fraction form
147,053.74/202,952.19 = 86,621.26/x - Step 3: Cross multiply
147,053.74x = 202,952.19 × 86,621.26 - Step 4: Simplify right side
147,053.74x = 17,579,974,417.56 - Step 5: Solve for x
x = 17,579,974,417.56/147,053.74 - Step 6: Final answer
x = 119,547.96
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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.