Finding the Fourth Proportional to 114,130.80, 157,550.95 and 68,206.65
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Solution
The fourth proportional to 114,130.80, 157,550.95 and 68,206.65 is: 94,155.32
Step by Step Solution
- Step 1: Write the proportion equation
114,130.80 : 157,550.95 = 68,206.65 : x - Step 2: Convert to fraction form
114,130.80/157,550.95 = 68,206.65/x - Step 3: Cross multiply
114,130.80x = 157,550.95 × 68,206.65 - Step 4: Simplify right side
114,130.80x = 10,746,021,545.55 - Step 5: Solve for x
x = 10,746,021,545.55/114,130.80 - Step 6: Final answer
x = 94,155.32
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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.