Finding the Fourth Proportional to 140,177.09, 193,437.06 and 76,502.54
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Solution
The fourth proportional to 140,177.09, 193,437.06 and 76,502.54 is: 105,569.51
Step by Step Solution
- Step 1: Write the proportion equation
140,177.09 : 193,437.06 = 76,502.54 : x - Step 2: Convert to fraction form
140,177.09/193,437.06 = 76,502.54/x - Step 3: Cross multiply
140,177.09x = 193,437.06 × 76,502.54 - Step 4: Simplify right side
140,177.09x = 14,798,426,420.13 - Step 5: Solve for x
x = 14,798,426,420.13/140,177.09 - Step 6: Final answer
x = 105,569.51
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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.