Finding the Fourth Proportional to 93,935.06, 129,649.95 and 86,369.42
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Solution
The fourth proportional to 93,935.06, 129,649.95 and 86,369.42 is: 119,207.80
Step by Step Solution
- Step 1: Write the proportion equation
93,935.06 : 129,649.95 = 86,369.42 : x - Step 2: Convert to fraction form
93,935.06/129,649.95 = 86,369.42/x - Step 3: Cross multiply
93,935.06x = 129,649.95 × 86,369.42 - Step 4: Simplify right side
93,935.06x = 11,197,791,308.65 - Step 5: Solve for x
x = 11,197,791,308.65/93,935.06 - Step 6: Final answer
x = 119,207.80
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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.