Finding the Fourth Proportional to 104,528.14, 144,248.99 and 56,781.47
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Solution
The fourth proportional to 104,528.14, 144,248.99 and 56,781.47 is: 78,358.52
Step by Step Solution
- Step 1: Write the proportion equation
104,528.14 : 144,248.99 = 56,781.47 : x - Step 2: Convert to fraction form
104,528.14/144,248.99 = 56,781.47/x - Step 3: Cross multiply
104,528.14x = 144,248.99 × 56,781.47 - Step 4: Simplify right side
104,528.14x = 8,190,669,774.93 - Step 5: Solve for x
x = 8,190,669,774.93/104,528.14 - Step 6: Final answer
x = 78,358.52
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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.