Finding the Fourth Proportional to 170,774.07, 235,681.70 and 99,176.55
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Solution
The fourth proportional to 170,774.07, 235,681.70 and 99,176.55 is: 136,871.47
Step by Step Solution
- Step 1: Write the proportion equation
170,774.07 : 235,681.70 = 99,176.55 : x - Step 2: Convert to fraction form
170,774.07/235,681.70 = 99,176.55/x - Step 3: Cross multiply
170,774.07x = 235,681.70 × 99,176.55 - Step 4: Simplify right side
170,774.07x = 23,374,097,408.25 - Step 5: Solve for x
x = 23,374,097,408.25/170,774.07 - Step 6: Final answer
x = 136,871.47
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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.