Finding the Fourth Proportional to 157,152.99, 216,871.13 and 85,533.53
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Solution
The fourth proportional to 157,152.99, 216,871.13 and 85,533.53 is: 118,036.28
Step by Step Solution
- Step 1: Write the proportion equation
157,152.99 : 216,871.13 = 85,533.53 : x - Step 2: Convert to fraction form
157,152.99/216,871.13 = 85,533.53/x - Step 3: Cross multiply
157,152.99x = 216,871.13 × 85,533.53 - Step 4: Simplify right side
157,152.99x = 18,549,754,060.00 - Step 5: Solve for x
x = 18,549,754,060.00/157,152.99 - Step 6: Final answer
x = 118,036.28
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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.