Finding the Fourth Proportional to 102,430.98, 141,364.04 and 62,154.95
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Solution
The fourth proportional to 102,430.98, 141,364.04 and 62,154.95 is: 85,779.46
Step by Step Solution
- Step 1: Write the proportion equation
102,430.98 : 141,364.04 = 62,154.95 : x - Step 2: Convert to fraction form
102,430.98/141,364.04 = 62,154.95/x - Step 3: Cross multiply
102,430.98x = 141,364.04 × 62,154.95 - Step 4: Simplify right side
102,430.98x = 8,786,473,820.40 - Step 5: Solve for x
x = 8,786,473,820.40/102,430.98 - Step 6: Final answer
x = 85,779.46
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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.