Finding the Fourth Proportional to 101,669.18, 140,303.48 and 56,350.08
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Solution
The fourth proportional to 101,669.18, 140,303.48 and 56,350.08 is: 77,763.12
Step by Step Solution
- Step 1: Write the proportion equation
101,669.18 : 140,303.48 = 56,350.08 : x - Step 2: Convert to fraction form
101,669.18/140,303.48 = 56,350.08/x - Step 3: Cross multiply
101,669.18x = 140,303.48 × 56,350.08 - Step 4: Simplify right side
101,669.18x = 7,906,112,040.53 - Step 5: Solve for x
x = 7,906,112,040.53/101,669.18 - Step 6: Final answer
x = 77,763.12
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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.