Finding the Fourth Proportional to 94,904.99, 130,988.91 and 78,973.91
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Solution
The fourth proportional to 94,904.99, 130,988.91 and 78,973.91 is: 109,000.65
Step by Step Solution
- Step 1: Write the proportion equation
94,904.99 : 130,988.91 = 78,973.91 : x - Step 2: Convert to fraction form
94,904.99/130,988.91 = 78,973.91/x - Step 3: Cross multiply
94,904.99x = 130,988.91 × 78,973.91 - Step 4: Simplify right side
94,904.99x = 10,344,705,339.52 - Step 5: Solve for x
x = 10,344,705,339.52/94,904.99 - Step 6: Final answer
x = 109,000.65
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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.