Finding the Fourth Proportional to 143,352.42, 215,862.02 and 106,176.30
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Solution
The fourth proportional to 143,352.42, 215,862.02 and 106,176.30 is: 159,881.71
Step by Step Solution
- Step 1: Write the proportion equation
143,352.42 : 215,862.02 = 106,176.30 : x - Step 2: Convert to fraction form
143,352.42/215,862.02 = 106,176.30/x - Step 3: Cross multiply
143,352.42x = 215,862.02 × 106,176.30 - Step 4: Simplify right side
143,352.42x = 22,919,430,594.13 - Step 5: Solve for x
x = 22,919,430,594.13/143,352.42 - Step 6: Final answer
x = 159,881.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.