Finding the Fourth Proportional to 176,431.10, 243,466.98 and 99,948.63
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Solution
The fourth proportional to 176,431.10, 243,466.98 and 99,948.63 is: 137,924.61
Step by Step Solution
- Step 1: Write the proportion equation
176,431.10 : 243,466.98 = 99,948.63 : x - Step 2: Convert to fraction form
176,431.10/243,466.98 = 99,948.63/x - Step 3: Cross multiply
176,431.10x = 243,466.98 × 99,948.63 - Step 4: Simplify right side
176,431.10x = 24,334,191,101.24 - Step 5: Solve for x
x = 24,334,191,101.24/176,431.10 - Step 6: Final answer
x = 137,924.61
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1.5x scale
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.