Finding the Fourth Proportional to 105,201.18, 157,840.65 and 38,684.79
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Solution
The fourth proportional to 105,201.18, 157,840.65 and 38,684.79 is: 58,041.48
Step by Step Solution
- Step 1: Write the proportion equation
105,201.18 : 157,840.65 = 38,684.79 : x - Step 2: Convert to fraction form
105,201.18/157,840.65 = 38,684.79/x - Step 3: Cross multiply
105,201.18x = 157,840.65 × 38,684.79 - Step 4: Simplify right side
105,201.18x = 6,106,032,398.71 - Step 5: Solve for x
x = 6,106,032,398.71/105,201.18 - Step 6: Final answer
x = 58,041.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.