Finding the Fourth Proportional to 143,341.48, 197,782.50 and 86,756.68
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Solution
The fourth proportional to 143,341.48, 197,782.50 and 86,756.68 is: 119,706.82
Step by Step Solution
- Step 1: Write the proportion equation
143,341.48 : 197,782.50 = 86,756.68 : x - Step 2: Convert to fraction form
143,341.48/197,782.50 = 86,756.68/x - Step 3: Cross multiply
143,341.48x = 197,782.50 × 86,756.68 - Step 4: Simplify right side
143,341.48x = 17,158,953,062.10 - Step 5: Solve for x
x = 17,158,953,062.10/143,341.48 - Step 6: Final answer
x = 119,706.82
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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.