Finding the Fourth Proportional to 153,461.60, 211,787.63 and 93,034.79
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Solution
The fourth proportional to 153,461.60, 211,787.63 and 93,034.79 is: 128,394.45
Step by Step Solution
- Step 1: Write the proportion equation
153,461.60 : 211,787.63 = 93,034.79 : x - Step 2: Convert to fraction form
153,461.60/211,787.63 = 93,034.79/x - Step 3: Cross multiply
153,461.60x = 211,787.63 × 93,034.79 - Step 4: Simplify right side
153,461.60x = 19,703,617,681.65 - Step 5: Solve for x
x = 19,703,617,681.65/153,461.60 - Step 6: Final answer
x = 128,394.45
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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.