Finding the Fourth Proportional to 150,070.08, 207,148.80 and 86,433.12
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Solution
The fourth proportional to 150,070.08, 207,148.80 and 86,433.12 is: 119,307.71
Step by Step Solution
- Step 1: Write the proportion equation
150,070.08 : 207,148.80 = 86,433.12 : x - Step 2: Convert to fraction form
150,070.08/207,148.80 = 86,433.12/x - Step 3: Cross multiply
150,070.08x = 207,148.80 × 86,433.12 - Step 4: Simplify right side
150,070.08x = 17,904,517,088.26 - Step 5: Solve for x
x = 17,904,517,088.26/150,070.08 - Step 6: Final answer
x = 119,307.71
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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.