Finding the Fourth Proportional to 134,027.13, 184,972.21 and 76,671.74
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Solution
The fourth proportional to 134,027.13, 184,972.21 and 76,671.74 is: 105,815.45
Step by Step Solution
- Step 1: Write the proportion equation
134,027.13 : 184,972.21 = 76,671.74 : x - Step 2: Convert to fraction form
134,027.13/184,972.21 = 76,671.74/x - Step 3: Cross multiply
134,027.13x = 184,972.21 × 76,671.74 - Step 4: Simplify right side
134,027.13x = 14,182,141,271.42 - Step 5: Solve for x
x = 14,182,141,271.42/134,027.13 - Step 6: Final answer
x = 105,815.45
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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.