Finding the Fourth Proportional to 147,351.69, 203,335.65 and 86,908.55
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Solution
The fourth proportional to 147,351.69, 203,335.65 and 86,908.55 is: 119,928.08
Step by Step Solution
- Step 1: Write the proportion equation
147,351.69 : 203,335.65 = 86,908.55 : x - Step 2: Convert to fraction form
147,351.69/203,335.65 = 86,908.55/x - Step 3: Cross multiply
147,351.69x = 203,335.65 × 86,908.55 - Step 4: Simplify right side
147,351.69x = 17,671,605,488.13 - Step 5: Solve for x
x = 17,671,605,488.13/147,351.69 - Step 6: Final answer
x = 119,928.08
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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.