Finding the Fourth Proportional to 133,283.41, 183,931.11 and 72,854.29
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Solution
The fourth proportional to 133,283.41, 183,931.11 and 72,854.29 is: 100,538.92
Step by Step Solution
- Step 1: Write the proportion equation
133,283.41 : 183,931.11 = 72,854.29 : x - Step 2: Convert to fraction form
133,283.41/183,931.11 = 72,854.29/x - Step 3: Cross multiply
133,283.41x = 183,931.11 × 72,854.29 - Step 4: Simplify right side
133,283.41x = 13,400,169,968.13 - Step 5: Solve for x
x = 13,400,169,968.13/133,283.41 - Step 6: Final answer
x = 100,538.92
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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.