Finding the Fourth Proportional to 153,462.79, 211,811.33 and 103,132.63
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Solution
The fourth proportional to 153,462.79, 211,811.33 and 103,132.63 is: 142,344.99
Step by Step Solution
- Step 1: Write the proportion equation
153,462.79 : 211,811.33 = 103,132.63 : x - Step 2: Convert to fraction form
153,462.79/211,811.33 = 103,132.63/x - Step 3: Cross multiply
153,462.79x = 211,811.33 × 103,132.63 - Step 4: Simplify right side
153,462.79x = 21,844,659,526.70 - Step 5: Solve for x
x = 21,844,659,526.70/153,462.79 - Step 6: Final answer
x = 142,344.99
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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.