Finding the Fourth Proportional to 147,874.08, 221,730.06 and 72,829.20
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Solution
The fourth proportional to 147,874.08, 221,730.06 and 72,829.20 is: 109,203.88
Step by Step Solution
- Step 1: Write the proportion equation
147,874.08 : 221,730.06 = 72,829.20 : x - Step 2: Convert to fraction form
147,874.08/221,730.06 = 72,829.20/x - Step 3: Cross multiply
147,874.08x = 221,730.06 × 72,829.20 - Step 4: Simplify right side
147,874.08x = 16,148,422,885.75 - Step 5: Solve for x
x = 16,148,422,885.75/147,874.08 - Step 6: Final answer
x = 109,203.88
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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.