Finding the Fourth Proportional to 139,313.08, 207,501.65 and 136,397.08
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Solution
The fourth proportional to 139,313.08, 207,501.65 and 136,397.08 is: 203,158.38
Step by Step Solution
- Step 1: Write the proportion equation
139,313.08 : 207,501.65 = 136,397.08 : x - Step 2: Convert to fraction form
139,313.08/207,501.65 = 136,397.08/x - Step 3: Cross multiply
139,313.08x = 207,501.65 × 136,397.08 - Step 4: Simplify right side
139,313.08x = 28,302,619,155.18 - Step 5: Solve for x
x = 28,302,619,155.18/139,313.08 - Step 6: Final answer
x = 203,158.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.