Finding the Fourth Proportional to 98,896.95, 136,502.20 and 56,480.08
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Solution
The fourth proportional to 98,896.95, 136,502.20 and 56,480.08 is: 77,956.45
Step by Step Solution
- Step 1: Write the proportion equation
98,896.95 : 136,502.20 = 56,480.08 : x - Step 2: Convert to fraction form
98,896.95/136,502.20 = 56,480.08/x - Step 3: Cross multiply
98,896.95x = 136,502.20 × 56,480.08 - Step 4: Simplify right side
98,896.95x = 7,709,655,176.18 - Step 5: Solve for x
x = 7,709,655,176.18/98,896.95 - Step 6: Final answer
x = 77,956.45
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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.