Finding the Fourth Proportional to 118,929.68, 164,209.06 and 76,562.02
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Solution
The fourth proportional to 118,929.68, 164,209.06 and 76,562.02 is: 105,711.02
Step by Step Solution
- Step 1: Write the proportion equation
118,929.68 : 164,209.06 = 76,562.02 : x - Step 2: Convert to fraction form
118,929.68/164,209.06 = 76,562.02/x - Step 3: Cross multiply
118,929.68x = 164,209.06 × 76,562.02 - Step 4: Simplify right side
118,929.68x = 12,572,177,335.90 - Step 5: Solve for x
x = 12,572,177,335.90/118,929.68 - Step 6: Final answer
x = 105,711.02
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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.