Finding the Fourth Proportional to 125,003.84, 187,506.99 and 31,509.59
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Solution
The fourth proportional to 125,003.84, 187,506.99 and 31,509.59 is: 47,264.70
Step by Step Solution
- Step 1: Write the proportion equation
125,003.84 : 187,506.99 = 31,509.59 : x - Step 2: Convert to fraction form
125,003.84/187,506.99 = 31,509.59/x - Step 3: Cross multiply
125,003.84x = 187,506.99 × 31,509.59 - Step 4: Simplify right side
125,003.84x = 5,908,268,377.03 - Step 5: Solve for x
x = 5,908,268,377.03/125,003.84 - Step 6: Final answer
x = 47,264.70
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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.