Finding the Fourth Proportional to 148,642.24, 205,119.12 and 84,987.04
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Solution
The fourth proportional to 148,642.24, 205,119.12 and 84,987.04 is: 117,278.02
Step by Step Solution
- Step 1: Write the proportion equation
148,642.24 : 205,119.12 = 84,987.04 : x - Step 2: Convert to fraction form
148,642.24/205,119.12 = 84,987.04/x - Step 3: Cross multiply
148,642.24x = 205,119.12 × 84,987.04 - Step 4: Simplify right side
148,642.24x = 17,432,466,856.20 - Step 5: Solve for x
x = 17,432,466,856.20/148,642.24 - Step 6: Final answer
x = 117,278.02
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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.