Finding the Fourth Proportional to 134,733.84, 185,928.40 and 74,307.12
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Solution
The fourth proportional to 134,733.84, 185,928.40 and 74,307.12 is: 102,541.45
Step by Step Solution
- Step 1: Write the proportion equation
134,733.84 : 185,928.40 = 74,307.12 : x - Step 2: Convert to fraction form
134,733.84/185,928.40 = 74,307.12/x - Step 3: Cross multiply
134,733.84x = 185,928.40 × 74,307.12 - Step 4: Simplify right side
134,733.84x = 13,815,803,930.21 - Step 5: Solve for x
x = 13,815,803,930.21/134,733.84 - Step 6: Final answer
x = 102,541.45
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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.