Finding the Fourth Proportional to 128,263.04, 176,952.84 and 74,538.56
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Solution
The fourth proportional to 128,263.04, 176,952.84 and 74,538.56 is: 102,834.07
Step by Step Solution
- Step 1: Write the proportion equation
128,263.04 : 176,952.84 = 74,538.56 : x - Step 2: Convert to fraction form
128,263.04/176,952.84 = 74,538.56/x - Step 3: Cross multiply
128,263.04x = 176,952.84 × 74,538.56 - Step 4: Simplify right side
128,263.04x = 13,189,809,881.51 - Step 5: Solve for x
x = 13,189,809,881.51/128,263.04 - Step 6: Final answer
x = 102,834.07
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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.