Finding the Fourth Proportional to 150,026.96, 207,089.34 and 86,390.12
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Solution
The fourth proportional to 150,026.96, 207,089.34 and 86,390.12 is: 119,248.39
Step by Step Solution
- Step 1: Write the proportion equation
150,026.96 : 207,089.34 = 86,390.12 : x - Step 2: Convert to fraction form
150,026.96/207,089.34 = 86,390.12/x - Step 3: Cross multiply
150,026.96x = 207,089.34 × 86,390.12 - Step 4: Simplify right side
150,026.96x = 17,890,472,933.32 - Step 5: Solve for x
x = 17,890,472,933.32/150,026.96 - Step 6: Final answer
x = 119,248.39
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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.