Finding the Fourth Proportional to 130,261.15, 195,422.44 and 103,707.53
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Solution
The fourth proportional to 130,261.15, 195,422.44 and 103,707.53 is: 155,585.75
Step by Step Solution
- Step 1: Write the proportion equation
130,261.15 : 195,422.44 = 103,707.53 : x - Step 2: Convert to fraction form
130,261.15/195,422.44 = 103,707.53/x - Step 3: Cross multiply
130,261.15x = 195,422.44 × 103,707.53 - Step 4: Simplify right side
130,261.15x = 20,266,778,558.97 - Step 5: Solve for x
x = 20,266,778,558.97/130,261.15 - Step 6: Final answer
x = 155,585.75
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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.