Finding the Fourth Proportional to 156,867.84, 216,479.66 and 85,248.99
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Solution
The fourth proportional to 156,867.84, 216,479.66 and 85,248.99 is: 117,644.71
Step by Step Solution
- Step 1: Write the proportion equation
156,867.84 : 216,479.66 = 85,248.99 : x - Step 2: Convert to fraction form
156,867.84/216,479.66 = 85,248.99/x - Step 3: Cross multiply
156,867.84x = 216,479.66 × 85,248.99 - Step 4: Simplify right side
156,867.84x = 18,454,671,944.30 - Step 5: Solve for x
x = 18,454,671,944.30/156,867.84 - Step 6: Final answer
x = 117,644.71
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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.