Finding the Fourth Proportional to 128,952.02, 191,867.90 and 125,737.94
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Solution
The fourth proportional to 128,952.02, 191,867.90 and 125,737.94 is: 187,085.67
Step by Step Solution
- Step 1: Write the proportion equation
128,952.02 : 191,867.90 = 125,737.94 : x - Step 2: Convert to fraction form
128,952.02/191,867.90 = 125,737.94/x - Step 3: Cross multiply
128,952.02x = 191,867.90 × 125,737.94 - Step 4: Simplify right side
128,952.02x = 24,125,074,498.13 - Step 5: Solve for x
x = 24,125,074,498.13/128,952.02 - Step 6: Final answer
x = 187,085.67
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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.