Finding the Fourth Proportional to 105,011.23, 157,338.65 and 63,370.75
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Solution
The fourth proportional to 105,011.23, 157,338.65 and 63,370.75 is: 94,948.59
Step by Step Solution
- Step 1: Write the proportion equation
105,011.23 : 157,338.65 = 63,370.75 : x - Step 2: Convert to fraction form
105,011.23/157,338.65 = 63,370.75/x - Step 3: Cross multiply
105,011.23x = 157,338.65 × 63,370.75 - Step 4: Simplify right side
105,011.23x = 9,970,667,937.63 - Step 5: Solve for x
x = 9,970,667,937.63/105,011.23 - Step 6: Final answer
x = 94,948.59
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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.