Finding the Fourth Proportional to 165,670.80, 228,612.21 and 93,069.74
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Solution
The fourth proportional to 165,670.80, 228,612.21 and 93,069.74 is: 128,428.66
Step by Step Solution
- Step 1: Write the proportion equation
165,670.80 : 228,612.21 = 93,069.74 : x - Step 2: Convert to fraction form
165,670.80/228,612.21 = 93,069.74/x - Step 3: Cross multiply
165,670.80x = 228,612.21 × 93,069.74 - Step 4: Simplify right side
165,670.80x = 21,276,878,945.53 - Step 5: Solve for x
x = 21,276,878,945.53/165,670.80 - Step 6: Final answer
x = 128,428.66
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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.