Finding the Fourth Proportional to 143,285.74, 197,676.58 and 86,598.70
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Solution
The fourth proportional to 143,285.74, 197,676.58 and 86,598.70 is: 119,471.31
Step by Step Solution
- Step 1: Write the proportion equation
143,285.74 : 197,676.58 = 86,598.70 : x - Step 2: Convert to fraction form
143,285.74/197,676.58 = 86,598.70/x - Step 3: Cross multiply
143,285.74x = 197,676.58 × 86,598.70 - Step 4: Simplify right side
143,285.74x = 17,118,534,848.45 - Step 5: Solve for x
x = 17,118,534,848.45/143,285.74 - Step 6: Final answer
x = 119,471.31
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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.