Finding the Fourth Proportional to 143,030.49, 197,418.36 and 97,726.78
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Solution
The fourth proportional to 143,030.49, 197,418.36 and 97,726.78 is: 134,887.75
Step by Step Solution
- Step 1: Write the proportion equation
143,030.49 : 197,418.36 = 97,726.78 : x - Step 2: Convert to fraction form
143,030.49/197,418.36 = 97,726.78/x - Step 3: Cross multiply
143,030.49x = 197,418.36 × 97,726.78 - Step 4: Simplify right side
143,030.49x = 19,293,060,635.68 - Step 5: Solve for x
x = 19,293,060,635.68/143,030.49 - Step 6: Final answer
x = 134,887.75
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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.