Finding the Fourth Proportional to 140,214.18, 193,495.52 and 76,551.98
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Solution
The fourth proportional to 140,214.18, 193,495.52 and 76,551.98 is: 105,641.71
Step by Step Solution
- Step 1: Write the proportion equation
140,214.18 : 193,495.52 = 76,551.98 : x - Step 2: Convert to fraction form
140,214.18/193,495.52 = 76,551.98/x - Step 3: Cross multiply
140,214.18x = 193,495.52 × 76,551.98 - Step 4: Simplify right side
140,214.18x = 14,812,465,177.13 - Step 5: Solve for x
x = 14,812,465,177.13/140,214.18 - Step 6: Final answer
x = 105,641.71
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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.