Finding the Fourth Proportional to 156,971.40, 235,457.10 and 93,985.80
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Solution
The fourth proportional to 156,971.40, 235,457.10 and 93,985.80 is: 140,978.70
Step by Step Solution
- Step 1: Write the proportion equation
156,971.40 : 235,457.10 = 93,985.80 : x - Step 2: Convert to fraction form
156,971.40/235,457.10 = 93,985.80/x - Step 3: Cross multiply
156,971.40x = 235,457.10 × 93,985.80 - Step 4: Simplify right side
156,971.40x = 22,129,623,909.18 - Step 5: Solve for x
x = 22,129,623,909.18/156,971.40 - Step 6: Final answer
x = 140,978.70
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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.