Finding the Fourth Proportional to 148,774.08, 205,312.96 and 81,706.08
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Solution
The fourth proportional to 148,774.08, 205,312.96 and 81,706.08 is: 112,756.99
Step by Step Solution
- Step 1: Write the proportion equation
148,774.08 : 205,312.96 = 81,706.08 : x - Step 2: Convert to fraction form
148,774.08/205,312.96 = 81,706.08/x - Step 3: Cross multiply
148,774.08x = 205,312.96 × 81,706.08 - Step 4: Simplify right side
148,774.08x = 16,775,317,134.80 - Step 5: Solve for x
x = 16,775,317,134.80/148,774.08 - Step 6: Final answer
x = 112,756.99
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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.