Finding the Fourth Proportional to 156,686.93, 234,869.51 and 61,878.68
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Solution
The fourth proportional to 156,686.93, 234,869.51 and 61,878.68 is: 92,754.48
Step by Step Solution
- Step 1: Write the proportion equation
156,686.93 : 234,869.51 = 61,878.68 : x - Step 2: Convert to fraction form
156,686.93/234,869.51 = 61,878.68/x - Step 3: Cross multiply
156,686.93x = 234,869.51 × 61,878.68 - Step 4: Simplify right side
156,686.93x = 14,533,413,767.31 - Step 5: Solve for x
x = 14,533,413,767.31/156,686.93 - Step 6: Final answer
x = 92,754.48
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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.