Finding the Fourth Proportional to 149,931.05, 224,758.18 and 74,985.98
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Solution
The fourth proportional to 149,931.05, 224,758.18 and 74,985.98 is: 112,409.75
Step by Step Solution
- Step 1: Write the proportion equation
149,931.05 : 224,758.18 = 74,985.98 : x - Step 2: Convert to fraction form
149,931.05/224,758.18 = 74,985.98/x - Step 3: Cross multiply
149,931.05x = 224,758.18 × 74,985.98 - Step 4: Simplify right side
149,931.05x = 16,853,712,390.32 - Step 5: Solve for x
x = 16,853,712,390.32/149,931.05 - Step 6: Final answer
x = 112,409.75
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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.