Finding the Fourth Proportional to 134,740.20, 185,946.09 and 74,312.70
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Solution
The fourth proportional to 134,740.20, 185,946.09 and 74,312.70 is: 102,554.07
Step by Step Solution
- Step 1: Write the proportion equation
134,740.20 : 185,946.09 = 74,312.70 : x - Step 2: Convert to fraction form
134,740.20/185,946.09 = 74,312.70/x - Step 3: Cross multiply
134,740.20x = 185,946.09 × 74,312.70 - Step 4: Simplify right side
134,740.20x = 13,818,156,002.34 - Step 5: Solve for x
x = 13,818,156,002.34/134,740.20 - Step 6: Final answer
x = 102,554.07
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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.