Finding the Fourth Proportional to 103,177.98, 142,392.95 and 57,252.68
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Solution
The fourth proportional to 103,177.98, 142,392.95 and 57,252.68 is: 79,012.76
Step by Step Solution
- Step 1: Write the proportion equation
103,177.98 : 142,392.95 = 57,252.68 : x - Step 2: Convert to fraction form
103,177.98/142,392.95 = 57,252.68/x - Step 3: Cross multiply
103,177.98x = 142,392.95 × 57,252.68 - Step 4: Simplify right side
103,177.98x = 8,152,377,002.38 - Step 5: Solve for x
x = 8,152,377,002.38/103,177.98 - Step 6: Final answer
x = 79,012.76
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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.