Finding the Fourth Proportional to 130,188.74, 179,660.74 and 70,572.74
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Solution
The fourth proportional to 130,188.74, 179,660.74 and 70,572.74 is: 97,390.53
Step by Step Solution
- Step 1: Write the proportion equation
130,188.74 : 179,660.74 = 70,572.74 : x - Step 2: Convert to fraction form
130,188.74/179,660.74 = 70,572.74/x - Step 3: Cross multiply
130,188.74x = 179,660.74 × 70,572.74 - Step 4: Simplify right side
130,188.74x = 12,679,150,692.23 - Step 5: Solve for x
x = 12,679,150,692.23/130,188.74 - Step 6: Final answer
x = 97,390.53
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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.