Finding the Fourth Proportional to 103,417.58, 155,134.23 and 40,210.55
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Solution
The fourth proportional to 103,417.58, 155,134.23 and 40,210.55 is: 60,318.88
Step by Step Solution
- Step 1: Write the proportion equation
103,417.58 : 155,134.23 = 40,210.55 : x - Step 2: Convert to fraction form
103,417.58/155,134.23 = 40,210.55/x - Step 3: Cross multiply
103,417.58x = 155,134.23 × 40,210.55 - Step 4: Simplify right side
103,417.58x = 6,238,032,712.13 - Step 5: Solve for x
x = 6,238,032,712.13/103,417.58 - Step 6: Final answer
x = 60,318.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.