Finding the Fourth Proportional to 130,368.13, 179,908.02 and 70,752.13
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Solution
The fourth proportional to 130,368.13, 179,908.02 and 70,752.13 is: 97,637.94
Step by Step Solution
- Step 1: Write the proportion equation
130,368.13 : 179,908.02 = 70,752.13 : x - Step 2: Convert to fraction form
130,368.13/179,908.02 = 70,752.13/x - Step 3: Cross multiply
130,368.13x = 179,908.02 × 70,752.13 - Step 4: Simplify right side
130,368.13x = 12,728,875,619.08 - Step 5: Solve for x
x = 12,728,875,619.08/130,368.13 - Step 6: Final answer
x = 97,637.94
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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.