Finding the Fourth Proportional to 168,432.24, 232,430.40 and 92,979.12
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Solution
The fourth proportional to 168,432.24, 232,430.40 and 92,979.12 is: 128,307.82
Step by Step Solution
- Step 1: Write the proportion equation
168,432.24 : 232,430.40 = 92,979.12 : x - Step 2: Convert to fraction form
168,432.24/232,430.40 = 92,979.12/x - Step 3: Cross multiply
168,432.24x = 232,430.40 × 92,979.12 - Step 4: Simplify right side
168,432.24x = 21,611,174,053.25 - Step 5: Solve for x
x = 21,611,174,053.25/168,432.24 - Step 6: Final answer
x = 128,307.82
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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.