Finding the Fourth Proportional to 138,483.12, 207,909.18 and 93,655.08
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Solution
The fourth proportional to 138,483.12, 207,909.18 and 93,655.08 is: 140,607.40
Step by Step Solution
- Step 1: Write the proportion equation
138,483.12 : 207,909.18 = 93,655.08 : x - Step 2: Convert to fraction form
138,483.12/207,909.18 = 93,655.08/x - Step 3: Cross multiply
138,483.12x = 207,909.18 × 93,655.08 - Step 4: Simplify right side
138,483.12x = 19,471,750,885.63 - Step 5: Solve for x
x = 19,471,750,885.63/138,483.12 - Step 6: Final answer
x = 140,607.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.