Finding the Fourth Proportional to 124,867.68, 172,269.24 and 77,038.08
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Solution
The fourth proportional to 124,867.68, 172,269.24 and 77,038.08 is: 106,282.84
Step by Step Solution
- Step 1: Write the proportion equation
124,867.68 : 172,269.24 = 77,038.08 : x - Step 2: Convert to fraction form
124,867.68/172,269.24 = 77,038.08/x - Step 3: Cross multiply
124,867.68x = 172,269.24 × 77,038.08 - Step 4: Simplify right side
124,867.68x = 13,271,291,492.66 - Step 5: Solve for x
x = 13,271,291,492.66/124,867.68 - Step 6: Final answer
x = 106,282.84
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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.