Finding the Fourth Proportional to 105,457.84, 145,519.08 and 63,008.08
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Solution
The fourth proportional to 105,457.84, 145,519.08 and 63,008.08 is: 86,943.54
Step by Step Solution
- Step 1: Write the proportion equation
105,457.84 : 145,519.08 = 63,008.08 : x - Step 2: Convert to fraction form
105,457.84/145,519.08 = 63,008.08/x - Step 3: Cross multiply
105,457.84x = 145,519.08 × 63,008.08 - Step 4: Simplify right side
105,457.84x = 9,168,877,834.17 - Step 5: Solve for x
x = 9,168,877,834.17/105,457.84 - Step 6: Final answer
x = 86,943.54
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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.