Finding the Fourth Proportional to 138,595.95, 207,602.33 and 115,267.95
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Solution
The fourth proportional to 138,595.95, 207,602.33 and 115,267.95 is: 172,659.41
Step by Step Solution
- Step 1: Write the proportion equation
138,595.95 : 207,602.33 = 115,267.95 : x - Step 2: Convert to fraction form
138,595.95/207,602.33 = 115,267.95/x - Step 3: Cross multiply
138,595.95x = 207,602.33 × 115,267.95 - Step 4: Simplify right side
138,595.95x = 23,929,894,417.98 - Step 5: Solve for x
x = 23,929,894,417.98/138,595.95 - Step 6: Final answer
x = 172,659.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.