Finding the Fourth Proportional to 101,746.08, 140,409.56 and 56,430.96
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Solution
The fourth proportional to 101,746.08, 140,409.56 and 56,430.96 is: 77,874.71
Step by Step Solution
- Step 1: Write the proportion equation
101,746.08 : 140,409.56 = 56,430.96 : x - Step 2: Convert to fraction form
101,746.08/140,409.56 = 56,430.96/x - Step 3: Cross multiply
101,746.08x = 140,409.56 × 56,430.96 - Step 4: Simplify right side
101,746.08x = 7,923,446,263.98 - Step 5: Solve for x
x = 7,923,446,263.98/101,746.08 - Step 6: Final answer
x = 77,874.71
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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.