Finding the Fourth Proportional to 153,267.12, 211,506.56 and 86,199.12
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Solution
The fourth proportional to 153,267.12, 211,506.56 and 86,199.12 is: 118,953.62
Step by Step Solution
- Step 1: Write the proportion equation
153,267.12 : 211,506.56 = 86,199.12 : x - Step 2: Convert to fraction form
153,267.12/211,506.56 = 86,199.12/x - Step 3: Cross multiply
153,267.12x = 211,506.56 × 86,199.12 - Step 4: Simplify right side
153,267.12x = 18,231,679,346.23 - Step 5: Solve for x
x = 18,231,679,346.23/153,267.12 - Step 6: Final answer
x = 118,953.62
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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.