Finding the Fourth Proportional to 148,003.85, 221,987.32 and 87,248.99
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Solution
The fourth proportional to 148,003.85, 221,987.32 and 87,248.99 is: 130,862.61
Step by Step Solution
- Step 1: Write the proportion equation
148,003.85 : 221,987.32 = 87,248.99 : x - Step 2: Convert to fraction form
148,003.85/221,987.32 = 87,248.99/x - Step 3: Cross multiply
148,003.85x = 221,987.32 × 87,248.99 - Step 4: Simplify right side
148,003.85x = 19,368,169,462.81 - Step 5: Solve for x
x = 19,368,169,462.81/148,003.85 - Step 6: Final answer
x = 130,862.61
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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.