Finding the Fourth Proportional to 153,455.94, 211,779.84 and 93,029.13
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Solution
The fourth proportional to 153,455.94, 211,779.84 and 93,029.13 is: 128,386.65
Step by Step Solution
- Step 1: Write the proportion equation
153,455.94 : 211,779.84 = 93,029.13 : x - Step 2: Convert to fraction form
153,455.94/211,779.84 = 93,029.13/x - Step 3: Cross multiply
153,455.94x = 211,779.84 × 93,029.13 - Step 4: Simplify right side
153,455.94x = 19,701,694,615.60 - Step 5: Solve for x
x = 19,701,694,615.60/153,455.94 - Step 6: Final answer
x = 128,386.65
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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.