Finding the Fourth Proportional to 101,706.74, 140,363.58 and 56,398.92
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Solution
The fourth proportional to 101,706.74, 140,363.58 and 56,398.92 is: 77,835.11
Step by Step Solution
- Step 1: Write the proportion equation
101,706.74 : 140,363.58 = 56,398.92 : x - Step 2: Convert to fraction form
101,706.74/140,363.58 = 56,398.92/x - Step 3: Cross multiply
101,706.74x = 140,363.58 × 56,398.92 - Step 4: Simplify right side
101,706.74x = 7,916,354,670.24 - Step 5: Solve for x
x = 7,916,354,670.24/101,706.74 - Step 6: Final answer
x = 77,835.11
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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.