Finding the Fourth Proportional to 152,681.49, 210,657.11 and 89,006.99
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Solution
The fourth proportional to 152,681.49, 210,657.11 and 89,006.99 is: 122,804.37
Step by Step Solution
- Step 1: Write the proportion equation
152,681.49 : 210,657.11 = 89,006.99 : x - Step 2: Convert to fraction form
152,681.49/210,657.11 = 89,006.99/x - Step 3: Cross multiply
152,681.49x = 210,657.11 × 89,006.99 - Step 4: Simplify right side
152,681.49x = 18,749,953,784.88 - Step 5: Solve for x
x = 18,749,953,784.88/152,681.49 - Step 6: Final answer
x = 122,804.37
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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.