Finding the Fourth Proportional to 110,920.35, 153,085.95 and 63,178.14
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Solution
The fourth proportional to 110,920.35, 153,085.95 and 63,178.14 is: 87,194.87
Step by Step Solution
- Step 1: Write the proportion equation
110,920.35 : 153,085.95 = 63,178.14 : x - Step 2: Convert to fraction form
110,920.35/153,085.95 = 63,178.14/x - Step 3: Cross multiply
110,920.35x = 153,085.95 × 63,178.14 - Step 4: Simplify right side
110,920.35x = 9,671,685,581.13 - Step 5: Solve for x
x = 9,671,685,581.13/110,920.35 - Step 6: Final answer
x = 87,194.87
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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.