Finding the Fourth Proportional to 178,139.86, 245,824.27 and 97,567.74
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Solution
The fourth proportional to 178,139.86, 245,824.27 and 97,567.74 is: 134,638.70
Step by Step Solution
- Step 1: Write the proportion equation
178,139.86 : 245,824.27 = 97,567.74 : x - Step 2: Convert to fraction form
178,139.86/245,824.27 = 97,567.74/x - Step 3: Cross multiply
178,139.86x = 245,824.27 × 97,567.74 - Step 4: Simplify right side
178,139.86x = 23,984,518,217.13 - Step 5: Solve for x
x = 23,984,518,217.13/178,139.86 - Step 6: Final answer
x = 134,638.70
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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.