Finding the Fourth Proportional to 157,320.99, 216,952.11 and 105,754.77
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Solution
The fourth proportional to 157,320.99, 216,952.11 and 105,754.77 is: 145,840.17
Step by Step Solution
- Step 1: Write the proportion equation
157,320.99 : 216,952.11 = 105,754.77 : x - Step 2: Convert to fraction form
157,320.99/216,952.11 = 105,754.77/x - Step 3: Cross multiply
157,320.99x = 216,952.11 × 105,754.77 - Step 4: Simplify right side
157,320.99x = 22,943,720,494.06 - Step 5: Solve for x
x = 22,943,720,494.06/157,320.99 - Step 6: Final answer
x = 145,840.17
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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.