Finding the Fourth Proportional to 158,946.84, 219,335.58 and 87,329.88
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Solution
The fourth proportional to 158,946.84, 219,335.58 and 87,329.88 is: 120,509.16
Step by Step Solution
- Step 1: Write the proportion equation
158,946.84 : 219,335.58 = 87,329.88 : x - Step 2: Convert to fraction form
158,946.84/219,335.58 = 87,329.88/x - Step 3: Cross multiply
158,946.84x = 219,335.58 × 87,329.88 - Step 4: Simplify right side
158,946.84x = 19,154,549,881.13 - Step 5: Solve for x
x = 19,154,549,881.13/158,946.84 - Step 6: Final answer
x = 120,509.16
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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.