Finding the Fourth Proportional to 147,389.36, 203,402.76 and 83,737.94
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Solution
The fourth proportional to 147,389.36, 203,402.76 and 83,737.94 is: 115,561.45
Step by Step Solution
- Step 1: Write the proportion equation
147,389.36 : 203,402.76 = 83,737.94 : x - Step 2: Convert to fraction form
147,389.36/203,402.76 = 83,737.94/x - Step 3: Cross multiply
147,389.36x = 203,402.76 × 83,737.94 - Step 4: Simplify right side
147,389.36x = 17,032,528,112.71 - Step 5: Solve for x
x = 17,032,528,112.71/147,389.36 - Step 6: Final answer
x = 115,561.45
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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.