Finding the Fourth Proportional to 125,985.17, 173,781.36 and 74,963.40
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Solution
The fourth proportional to 125,985.17, 173,781.36 and 74,963.40 is: 103,402.98
Step by Step Solution
- Step 1: Write the proportion equation
125,985.17 : 173,781.36 = 74,963.40 : x - Step 2: Convert to fraction form
125,985.17/173,781.36 = 74,963.40/x - Step 3: Cross multiply
125,985.17x = 173,781.36 × 74,963.40 - Step 4: Simplify right side
125,985.17x = 13,027,241,602.22 - Step 5: Solve for x
x = 13,027,241,602.22/125,985.17 - Step 6: Final answer
x = 103,402.98
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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.