Finding the Fourth Proportional to 97,030.19, 133,857.41 and 70,130.09
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Solution
The fourth proportional to 97,030.19, 133,857.41 and 70,130.09 is: 96,747.53
Step by Step Solution
- Step 1: Write the proportion equation
97,030.19 : 133,857.41 = 70,130.09 : x - Step 2: Convert to fraction form
97,030.19/133,857.41 = 70,130.09/x - Step 3: Cross multiply
97,030.19x = 133,857.41 × 70,130.09 - Step 4: Simplify right side
97,030.19x = 9,387,431,190.53 - Step 5: Solve for x
x = 9,387,431,190.53/97,030.19 - Step 6: Final answer
x = 96,747.53
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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.