Finding the Fourth Proportional to 158,854.06, 219,220.14 and 87,235.62
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Solution
The fourth proportional to 158,854.06, 219,220.14 and 87,235.62 is: 120,386.00
Step by Step Solution
- Step 1: Write the proportion equation
158,854.06 : 219,220.14 = 87,235.62 : x - Step 2: Convert to fraction form
158,854.06/219,220.14 = 87,235.62/x - Step 3: Cross multiply
158,854.06x = 219,220.14 × 87,235.62 - Step 4: Simplify right side
158,854.06x = 19,123,804,829.39 - Step 5: Solve for x
x = 19,123,804,829.39/158,854.06 - Step 6: Final answer
x = 120,386.00
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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.