Finding the Fourth Proportional to 133,293.74, 183,944.95 and 72,864.41
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Solution
The fourth proportional to 133,293.74, 183,944.95 and 72,864.41 is: 100,552.65
Step by Step Solution
- Step 1: Write the proportion equation
133,293.74 : 183,944.95 = 72,864.41 : x - Step 2: Convert to fraction form
133,293.74/183,944.95 = 72,864.41/x - Step 3: Cross multiply
133,293.74x = 183,944.95 × 72,864.41 - Step 4: Simplify right side
133,293.74x = 13,403,039,152.34 - Step 5: Solve for x
x = 13,403,039,152.34/133,293.74 - Step 6: Final answer
x = 100,552.65
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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.