Finding the Fourth Proportional to 103,188.03, 142,347.06 and 67,398.99
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Solution
The fourth proportional to 103,188.03, 142,347.06 and 67,398.99 is: 92,976.37
Step by Step Solution
- Step 1: Write the proportion equation
103,188.03 : 142,347.06 = 67,398.99 : x - Step 2: Convert to fraction form
103,188.03/142,347.06 = 67,398.99/x - Step 3: Cross multiply
103,188.03x = 142,347.06 × 67,398.99 - Step 4: Simplify right side
103,188.03x = 9,594,048,073.47 - Step 5: Solve for x
x = 9,594,048,073.47/103,188.03 - Step 6: Final answer
x = 92,976.37
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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.