Finding the Fourth Proportional to 102,565.80, 153,848.70 and 47,269.80
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Solution
The fourth proportional to 102,565.80, 153,848.70 and 47,269.80 is: 70,904.70
Step by Step Solution
- Step 1: Write the proportion equation
102,565.80 : 153,848.70 = 47,269.80 : x - Step 2: Convert to fraction form
102,565.80/153,848.70 = 47,269.80/x - Step 3: Cross multiply
102,565.80x = 153,848.70 × 47,269.80 - Step 4: Simplify right side
102,565.80x = 7,272,397,279.26 - Step 5: Solve for x
x = 7,272,397,279.26/102,565.80 - Step 6: Final answer
x = 70,904.70
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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.