Finding the Fourth Proportional to 165,955.30, 249,088.47 and 87,126.10
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Solution
The fourth proportional to 165,955.30, 249,088.47 and 87,126.10 is: 130,770.80
Step by Step Solution
- Step 1: Write the proportion equation
165,955.30 : 249,088.47 = 87,126.10 : x - Step 2: Convert to fraction form
165,955.30/249,088.47 = 87,126.10/x - Step 3: Cross multiply
165,955.30x = 249,088.47 × 87,126.10 - Step 4: Simplify right side
165,955.30x = 21,702,106,946.07 - Step 5: Solve for x
x = 21,702,106,946.07/165,955.30 - Step 6: Final answer
x = 130,770.80
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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.