Finding the Fourth Proportional to 156,554.61, 216,045.44 and 84,934.62
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Solution
The fourth proportional to 156,554.61, 216,045.44 and 84,934.62 is: 117,209.82
Step by Step Solution
- Step 1: Write the proportion equation
156,554.61 : 216,045.44 = 84,934.62 : x - Step 2: Convert to fraction form
156,554.61/216,045.44 = 84,934.62/x - Step 3: Cross multiply
156,554.61x = 216,045.44 × 84,934.62 - Step 4: Simplify right side
156,554.61x = 18,349,736,924.46 - Step 5: Solve for x
x = 18,349,736,924.46/156,554.61 - Step 6: Final answer
x = 117,209.82
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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.