Finding the Fourth Proportional to 118,430.12, 177,637.88 and 39,537.74
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Solution
The fourth proportional to 118,430.12, 177,637.88 and 39,537.74 is: 59,304.17
Step by Step Solution
- Step 1: Write the proportion equation
118,430.12 : 177,637.88 = 39,537.74 : x - Step 2: Convert to fraction form
118,430.12/177,637.88 = 39,537.74/x - Step 3: Cross multiply
118,430.12x = 177,637.88 × 39,537.74 - Step 4: Simplify right side
118,430.12x = 7,023,400,313.59 - Step 5: Solve for x
x = 7,023,400,313.59/118,430.12 - Step 6: Final answer
x = 59,304.17
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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.