Finding the Fourth Proportional to 159,185.97, 219,671.98 and 87,565.95
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Solution
The fourth proportional to 159,185.97, 219,671.98 and 87,565.95 is: 120,838.45
Step by Step Solution
- Step 1: Write the proportion equation
159,185.97 : 219,671.98 = 87,565.95 : x - Step 2: Convert to fraction form
159,185.97/219,671.98 = 87,565.95/x - Step 3: Cross multiply
159,185.97x = 219,671.98 × 87,565.95 - Step 4: Simplify right side
159,185.97x = 19,235,785,398.17 - Step 5: Solve for x
x = 19,235,785,398.17/159,185.97 - Step 6: Final answer
x = 120,838.45
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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.