Finding the Fourth Proportional to 153,731.70, 212,117.49 and 93,334.14
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Solution
The fourth proportional to 153,731.70, 212,117.49 and 93,334.14 is: 128,781.53
Step by Step Solution
- Step 1: Write the proportion equation
153,731.70 : 212,117.49 = 93,334.14 : x - Step 2: Convert to fraction form
153,731.70/212,117.49 = 93,334.14/x - Step 3: Cross multiply
153,731.70x = 212,117.49 × 93,334.14 - Step 4: Simplify right side
153,731.70x = 19,797,803,508.11 - Step 5: Solve for x
x = 19,797,803,508.11/153,731.70 - Step 6: Final answer
x = 128,781.53
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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.