Finding the Fourth Proportional to 139,656.48, 208,536.02 and 135,873.06
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Solution
The fourth proportional to 139,656.48, 208,536.02 and 135,873.06 is: 202,886.59
Step by Step Solution
- Step 1: Write the proportion equation
139,656.48 : 208,536.02 = 135,873.06 : x - Step 2: Convert to fraction form
139,656.48/208,536.02 = 135,873.06/x - Step 3: Cross multiply
139,656.48x = 208,536.02 × 135,873.06 - Step 4: Simplify right side
139,656.48x = 28,334,426,478.26 - Step 5: Solve for x
x = 28,334,426,478.26/139,656.48 - Step 6: Final answer
x = 202,886.59
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.