Finding the Fourth Proportional to 134,041.74, 184,931.35 and 85,671.99
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Solution
The fourth proportional to 134,041.74, 184,931.35 and 85,671.99 is: 118,197.78
Step by Step Solution
- Step 1: Write the proportion equation
134,041.74 : 184,931.35 = 85,671.99 : x - Step 2: Convert to fraction form
134,041.74/184,931.35 = 85,671.99/x - Step 3: Cross multiply
134,041.74x = 184,931.35 × 85,671.99 - Step 4: Simplify right side
134,041.74x = 15,843,435,843.23 - Step 5: Solve for x
x = 15,843,435,843.23/134,041.74 - Step 6: Final answer
x = 118,197.78
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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.