Finding the Fourth Proportional to 156,837.36, 216,454.14 and 93,175.68
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Solution
The fourth proportional to 156,837.36, 216,454.14 and 93,175.68 is: 128,593.48
Step by Step Solution
- Step 1: Write the proportion equation
156,837.36 : 216,454.14 = 93,175.68 : x - Step 2: Convert to fraction form
156,837.36/216,454.14 = 93,175.68/x - Step 3: Cross multiply
156,837.36x = 216,454.14 × 93,175.68 - Step 4: Simplify right side
156,837.36x = 20,168,261,683.32 - Step 5: Solve for x
x = 20,168,261,683.32/156,837.36 - Step 6: Final answer
x = 128,593.48
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1.5x scale
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.