Finding the Fourth Proportional to 106,878.60, 147,494.76 and 59,135.28
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Solution
The fourth proportional to 106,878.60, 147,494.76 and 59,135.28 is: 81,607.95
Step by Step Solution
- Step 1: Write the proportion equation
106,878.60 : 147,494.76 = 59,135.28 : x - Step 2: Convert to fraction form
106,878.60/147,494.76 = 59,135.28/x - Step 3: Cross multiply
106,878.60x = 147,494.76 × 59,135.28 - Step 4: Simplify right side
106,878.60x = 8,722,143,931.13 - Step 5: Solve for x
x = 8,722,143,931.13/106,878.60 - Step 6: Final answer
x = 81,607.95
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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.