Finding the Fourth Proportional to 97,730.13, 134,798.07 and 89,689.77
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Solution
The fourth proportional to 97,730.13, 134,798.07 and 89,689.77 is: 123,708.09
Step by Step Solution
- Step 1: Write the proportion equation
97,730.13 : 134,798.07 = 89,689.77 : x - Step 2: Convert to fraction form
97,730.13/134,798.07 = 89,689.77/x - Step 3: Cross multiply
97,730.13x = 134,798.07 × 89,689.77 - Step 4: Simplify right side
97,730.13x = 12,090,007,894.74 - Step 5: Solve for x
x = 12,090,007,894.74/97,730.13 - Step 6: Final answer
x = 123,708.09
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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.