Finding the Fourth Proportional to 122,969,161.55, 169,697,299.15 and 67,214,948.13
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Solution
The fourth proportional to 122,969,161.55, 169,697,299.15 and 67,214,948.13 is: 92,756,549.82
Step by Step Solution
- Step 1: Write the proportion equation
122,969,161.55 : 169,697,299.15 = 67,214,948.13 : x - Step 2: Convert to fraction form
122,969,161.55/169,697,299.15 = 67,214,948.13/x - Step 3: Cross multiply
122,969,161.55x = 169,697,299.15 × 67,214,948.13 - Step 4: Simplify right side
122,969,161.55x = 11,406,195,160,168,342 - Step 5: Solve for x
x = 11,406,195,160,168,342/122,969,161.55 - Step 6: Final answer
x = 92,756,549.82
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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.