Finding the Fourth Proportional to 101,659.18, 140,285.85 and 56,335.99
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Solution
The fourth proportional to 101,659.18, 140,285.85 and 56,335.99 is: 77,741.55
Step by Step Solution
- Step 1: Write the proportion equation
101,659.18 : 140,285.85 = 56,335.99 : x - Step 2: Convert to fraction form
101,659.18/140,285.85 = 56,335.99/x - Step 3: Cross multiply
101,659.18x = 140,285.85 × 56,335.99 - Step 4: Simplify right side
101,659.18x = 7,903,142,242.74 - Step 5: Solve for x
x = 7,903,142,242.74/101,659.18 - Step 6: Final answer
x = 77,741.55
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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.