Finding the Fourth Proportional to 105,746.99, 145,932.84 and 58,002.75
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Solution
The fourth proportional to 105,746.99, 145,932.84 and 58,002.75 is: 80,044.89
Step by Step Solution
- Step 1: Write the proportion equation
105,746.99 : 145,932.84 = 58,002.75 : x - Step 2: Convert to fraction form
105,746.99/145,932.84 = 58,002.75/x - Step 3: Cross multiply
105,746.99x = 145,932.84 × 58,002.75 - Step 4: Simplify right side
105,746.99x = 8,464,506,035.31 - Step 5: Solve for x
x = 8,464,506,035.31/105,746.99 - Step 6: Final answer
x = 80,044.89
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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.