Finding the Fourth Proportional to 153,176.16, 211,351.80 and 89,501.65
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Solution
The fourth proportional to 153,176.16, 211,351.80 and 89,501.65 is: 123,493.99
Step by Step Solution
- Step 1: Write the proportion equation
153,176.16 : 211,351.80 = 89,501.65 : x - Step 2: Convert to fraction form
153,176.16/211,351.80 = 89,501.65/x - Step 3: Cross multiply
153,176.16x = 211,351.80 × 89,501.65 - Step 4: Simplify right side
153,176.16x = 18,916,334,830.47 - Step 5: Solve for x
x = 18,916,334,830.47/153,176.16 - Step 6: Final answer
x = 123,493.99
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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.