Finding the Fourth Proportional to 101,368.13, 139,888.08 and 56,656.13
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Solution
The fourth proportional to 101,368.13, 139,888.08 and 56,656.13 is: 78,185.49
Step by Step Solution
- Step 1: Write the proportion equation
101,368.13 : 139,888.08 = 56,656.13 : x - Step 2: Convert to fraction form
101,368.13/139,888.08 = 56,656.13/x - Step 3: Cross multiply
101,368.13x = 139,888.08 × 56,656.13 - Step 4: Simplify right side
101,368.13x = 7,925,516,546.49 - Step 5: Solve for x
x = 7,925,516,546.49/101,368.13 - Step 6: Final answer
x = 78,185.49
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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.