Finding the Fourth Proportional to 97,681.24, 145,869.38 and 83,493.08
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Solution
The fourth proportional to 97,681.24, 145,869.38 and 83,493.08 is: 124,681.91
Step by Step Solution
- Step 1: Write the proportion equation
97,681.24 : 145,869.38 = 83,493.08 : x - Step 2: Convert to fraction form
97,681.24/145,869.38 = 83,493.08/x - Step 3: Cross multiply
97,681.24x = 145,869.38 × 83,493.08 - Step 4: Simplify right side
97,681.24x = 12,179,083,762.01 - Step 5: Solve for x
x = 12,179,083,762.01/97,681.24 - Step 6: Final answer
x = 124,681.91
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.