Finding the Fourth Proportional to 147,312.93, 203,297.70 and 83,656.65
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Solution
The fourth proportional to 147,312.93, 203,297.70 and 83,656.65 is: 115,449.50
Step by Step Solution
- Step 1: Write the proportion equation
147,312.93 : 203,297.70 = 83,656.65 : x - Step 2: Convert to fraction form
147,312.93/203,297.70 = 83,656.65/x - Step 3: Cross multiply
147,312.93x = 203,297.70 × 83,656.65 - Step 4: Simplify right side
147,312.93x = 17,007,204,534.71 - Step 5: Solve for x
x = 17,007,204,534.71/147,312.93 - Step 6: Final answer
x = 115,449.50
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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.