Finding the Fourth Proportional to 124,829.70, 187,135.20 and 74,929.65
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Solution
The fourth proportional to 124,829.70, 187,135.20 and 74,929.65 is: 112,328.84
Step by Step Solution
- Step 1: Write the proportion equation
124,829.70 : 187,135.20 = 74,929.65 : x - Step 2: Convert to fraction form
124,829.70/187,135.20 = 74,929.65/x - Step 3: Cross multiply
124,829.70x = 187,135.20 × 74,929.65 - Step 4: Simplify right side
124,829.70x = 14,021,975,038.68 - Step 5: Solve for x
x = 14,021,975,038.68/124,829.70 - Step 6: Final answer
x = 112,328.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.