Finding the Fourth Proportional to 163,123.84, 224,981.04 and 134,780.32
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Solution
The fourth proportional to 163,123.84, 224,981.04 and 134,780.32 is: 185,889.55
Step by Step Solution
- Step 1: Write the proportion equation
163,123.84 : 224,981.04 = 134,780.32 : x - Step 2: Convert to fraction form
163,123.84/224,981.04 = 134,780.32/x - Step 3: Cross multiply
163,123.84x = 224,981.04 × 134,780.32 - Step 4: Simplify right side
163,123.84x = 30,323,016,565.13 - Step 5: Solve for x
x = 30,323,016,565.13/163,123.84 - Step 6: Final answer
x = 185,889.55
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1.5x scale
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.