Finding the Fourth Proportional to 153,573.36, 211,925.88 and 85,588.08
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Solution
The fourth proportional to 153,573.36, 211,925.88 and 85,588.08 is: 118,108.56
Step by Step Solution
- Step 1: Write the proportion equation
153,573.36 : 211,925.88 = 85,588.08 : x - Step 2: Convert to fraction form
153,573.36/211,925.88 = 85,588.08/x - Step 3: Cross multiply
153,573.36x = 211,925.88 × 85,588.08 - Step 4: Simplify right side
153,573.36x = 18,138,329,171.51 - Step 5: Solve for x
x = 18,138,329,171.51/153,573.36 - Step 6: Final answer
x = 118,108.56
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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.