Finding the Fourth Proportional to 97,117.19, 134,021.70 and 56,838.63
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Solution
The fourth proportional to 97,117.19, 134,021.70 and 56,838.63 is: 78,437.30
Step by Step Solution
- Step 1: Write the proportion equation
97,117.19 : 134,021.70 = 56,838.63 : x - Step 2: Convert to fraction form
97,117.19/134,021.70 = 56,838.63/x - Step 3: Cross multiply
97,117.19x = 134,021.70 × 56,838.63 - Step 4: Simplify right side
97,117.19x = 7,617,609,818.27 - Step 5: Solve for x
x = 7,617,609,818.27/97,117.19 - Step 6: Final answer
x = 78,437.30
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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.