Finding the Fourth Proportional to 101,962.58, 140,730.88 and 56,656.14
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Solution
The fourth proportional to 101,962.58, 140,730.88 and 56,656.14 is: 78,197.99
Step by Step Solution
- Step 1: Write the proportion equation
101,962.58 : 140,730.88 = 56,656.14 : x - Step 2: Convert to fraction form
101,962.58/140,730.88 = 56,656.14/x - Step 3: Cross multiply
101,962.58x = 140,730.88 × 56,656.14 - Step 4: Simplify right side
101,962.58x = 7,973,268,439.60 - Step 5: Solve for x
x = 7,973,268,439.60/101,962.58 - Step 6: Final answer
x = 78,197.99
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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.