Finding the Fourth Proportional to 98,803.19, 136,312.98 and 56,337.12
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Solution
The fourth proportional to 98,803.19, 136,312.98 and 56,337.12 is: 77,725.02
Step by Step Solution
- Step 1: Write the proportion equation
98,803.19 : 136,312.98 = 56,337.12 : x - Step 2: Convert to fraction form
98,803.19/136,312.98 = 56,337.12/x - Step 3: Cross multiply
98,803.19x = 136,312.98 × 56,337.12 - Step 4: Simplify right side
98,803.19x = 7,679,480,500.55 - Step 5: Solve for x
x = 7,679,480,500.55/98,803.19 - Step 6: Final answer
x = 77,725.02
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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.