Finding the Fourth Proportional to 159,038.84, 219,473.76 and 87,417.32
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Solution
The fourth proportional to 159,038.84, 219,473.76 and 87,417.32 is: 120,635.99
Step by Step Solution
- Step 1: Write the proportion equation
159,038.84 : 219,473.76 = 87,417.32 : x - Step 2: Convert to fraction form
159,038.84/219,473.76 = 87,417.32/x - Step 3: Cross multiply
159,038.84x = 219,473.76 × 87,417.32 - Step 4: Simplify right side
159,038.84x = 19,185,807,909.52 - Step 5: Solve for x
x = 19,185,807,909.52/159,038.84 - Step 6: Final answer
x = 120,635.99
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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.