Finding the Fourth Proportional to 128,854.08, 177,790.41 and 124,606.44
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Solution
The fourth proportional to 128,854.08, 177,790.41 and 124,606.44 is: 171,929.60
Step by Step Solution
- Step 1: Write the proportion equation
128,854.08 : 177,790.41 = 124,606.44 : x - Step 2: Convert to fraction form
128,854.08/177,790.41 = 124,606.44/x - Step 3: Cross multiply
128,854.08x = 177,790.41 × 124,606.44 - Step 4: Simplify right side
128,854.08x = 22,153,830,056.24 - Step 5: Solve for x
x = 22,153,830,056.24/128,854.08 - Step 6: Final answer
x = 171,929.60
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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.