Finding the Fourth Proportional to 133,248.03, 183,876.78 and 72,820.68
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Solution
The fourth proportional to 133,248.03, 183,876.78 and 72,820.68 is: 100,489.53
Step by Step Solution
- Step 1: Write the proportion equation
133,248.03 : 183,876.78 = 72,820.68 : x - Step 2: Convert to fraction form
133,248.03/183,876.78 = 72,820.68/x - Step 3: Cross multiply
133,248.03x = 183,876.78 × 72,820.68 - Step 4: Simplify right side
133,248.03x = 13,390,032,155.81 - Step 5: Solve for x
x = 13,390,032,155.81/133,248.03 - Step 6: Final answer
x = 100,489.53
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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.