Finding the Fourth Proportional to 130,117.70, 181,931.50 and 130,117.70
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Solution
The fourth proportional to 130,117.70, 181,931.50 and 130,117.70 is: 181,931.50
Step by Step Solution
- Step 1: Write the proportion equation
130,117.70 : 181,931.50 = 130,117.70 : x - Step 2: Convert to fraction form
130,117.70/181,931.50 = 130,117.70/x - Step 3: Cross multiply
130,117.70x = 181,931.50 × 130,117.70 - Step 4: Simplify right side
130,117.70x = 23,672,508,337.55 - Step 5: Solve for x
x = 23,672,508,337.55/130,117.70 - Step 6: Final answer
x = 181,931.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.