Finding the Fourth Proportional to 124,374.72, 171,637.12 and 67,786.08
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Solution
The fourth proportional to 124,374.72, 171,637.12 and 67,786.08 is: 93,544.79
Step by Step Solution
- Step 1: Write the proportion equation
124,374.72 : 171,637.12 = 67,786.08 : x - Step 2: Convert to fraction form
124,374.72/171,637.12 = 67,786.08/x - Step 3: Cross multiply
124,374.72x = 171,637.12 × 67,786.08 - Step 4: Simplify right side
124,374.72x = 11,634,607,547.29 - Step 5: Solve for x
x = 11,634,607,547.29/124,374.72 - Step 6: Final answer
x = 93,544.79
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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.