Finding the Fourth Proportional to 97,318.30, 145,977.45 and 93,430.30
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Solution
The fourth proportional to 97,318.30, 145,977.45 and 93,430.30 is: 140,145.45
Step by Step Solution
- Step 1: Write the proportion equation
97,318.30 : 145,977.45 = 93,430.30 : x - Step 2: Convert to fraction form
97,318.30/145,977.45 = 93,430.30/x - Step 3: Cross multiply
97,318.30x = 145,977.45 × 93,430.30 - Step 4: Simplify right side
97,318.30x = 13,638,716,946.74 - Step 5: Solve for x
x = 13,638,716,946.74/97,318.30 - Step 6: Final answer
x = 140,145.45
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1.5x scale
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.