Finding the Fourth Proportional to 139,981.08, 210,059.10 and 56,875.08
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Solution
The fourth proportional to 139,981.08, 210,059.10 and 56,875.08 is: 85,348.16
Step by Step Solution
- Step 1: Write the proportion equation
139,981.08 : 210,059.10 = 56,875.08 : x - Step 2: Convert to fraction form
139,981.08/210,059.10 = 56,875.08/x - Step 3: Cross multiply
139,981.08x = 210,059.10 × 56,875.08 - Step 4: Simplify right side
139,981.08x = 11,947,128,117.23 - Step 5: Solve for x
x = 11,947,128,117.23/139,981.08 - Step 6: Final answer
x = 85,348.16
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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.