Finding the Fourth Proportional to 147,405.36, 203,420.08 and 83,746.64
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Solution
The fourth proportional to 147,405.36, 203,420.08 and 83,746.64 is: 115,570.75
Step by Step Solution
- Step 1: Write the proportion equation
147,405.36 : 203,420.08 = 83,746.64 : x - Step 2: Convert to fraction form
147,405.36/203,420.08 = 83,746.64/x - Step 3: Cross multiply
147,405.36x = 203,420.08 × 83,746.64 - Step 4: Simplify right side
147,405.36x = 17,035,748,208.53 - Step 5: Solve for x
x = 17,035,748,208.53/147,405.36 - Step 6: Final answer
x = 115,570.75
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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.