Finding the Fourth Proportional to 102,587.20, 153,880.80 and 97,748.80
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Solution
The fourth proportional to 102,587.20, 153,880.80 and 97,748.80 is: 146,623.20
Step by Step Solution
- Step 1: Write the proportion equation
102,587.20 : 153,880.80 = 97,748.80 : x - Step 2: Convert to fraction form
102,587.20/153,880.80 = 97,748.80/x - Step 3: Cross multiply
102,587.20x = 153,880.80 × 97,748.80 - Step 4: Simplify right side
102,587.20x = 15,041,663,543.04 - Step 5: Solve for x
x = 15,041,663,543.04/102,587.20 - Step 6: Final answer
x = 146,623.20
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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.