Finding the Fourth Proportional to 157,276.11, 235,856.74 and 57,406.75
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Solution
The fourth proportional to 157,276.11, 235,856.74 and 57,406.75 is: 86,089.17
Step by Step Solution
- Step 1: Write the proportion equation
157,276.11 : 235,856.74 = 57,406.75 : x - Step 2: Convert to fraction form
157,276.11/235,856.74 = 57,406.75/x - Step 3: Cross multiply
157,276.11x = 235,856.74 × 57,406.75 - Step 4: Simplify right side
157,276.11x = 13,539,768,785.36 - Step 5: Solve for x
x = 13,539,768,785.36/157,276.11 - Step 6: Final answer
x = 86,089.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.