Finding the Fourth Proportional to 153,316.65, 211,576.67 and 86,248.65
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Solution
The fourth proportional to 153,316.65, 211,576.67 and 86,248.65 is: 119,022.96
Step by Step Solution
- Step 1: Write the proportion equation
153,316.65 : 211,576.67 = 86,248.65 : x - Step 2: Convert to fraction form
153,316.65/211,576.67 = 86,248.65/x - Step 3: Cross multiply
153,316.65x = 211,576.67 × 86,248.65 - Step 4: Simplify right side
153,316.65x = 18,248,201,727.75 - Step 5: Solve for x
x = 18,248,201,727.75/153,316.65 - Step 6: Final answer
x = 119,022.96
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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.