Finding the Fourth Proportional to 124,117.74, 171,289.11 and 70,420.02
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Solution
The fourth proportional to 124,117.74, 171,289.11 and 70,420.02 is: 97,183.39
Step by Step Solution
- Step 1: Write the proportion equation
124,117.74 : 171,289.11 = 70,420.02 : x - Step 2: Convert to fraction form
124,117.74/171,289.11 = 70,420.02/x - Step 3: Cross multiply
124,117.74x = 171,289.11 × 70,420.02 - Step 4: Simplify right side
124,117.74x = 12,062,182,551.98 - Step 5: Solve for x
x = 12,062,182,551.98/124,117.74 - Step 6: Final answer
x = 97,183.39
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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.