Finding the Fourth Proportional to 153,779.16, 212,230.08 and 93,335.88
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Solution
The fourth proportional to 153,779.16, 212,230.08 and 93,335.88 is: 128,812.52
Step by Step Solution
- Step 1: Write the proportion equation
153,779.16 : 212,230.08 = 93,335.88 : x - Step 2: Convert to fraction form
153,779.16/212,230.08 = 93,335.88/x - Step 3: Cross multiply
153,779.16x = 212,230.08 × 93,335.88 - Step 4: Simplify right side
153,779.16x = 19,808,681,279.27 - Step 5: Solve for x
x = 19,808,681,279.27/153,779.16 - Step 6: Final answer
x = 128,812.52
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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.