Finding the Fourth Proportional to 112,307.16, 154,979.76 and 62,005.08
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Solution
The fourth proportional to 112,307.16, 154,979.76 and 62,005.08 is: 85,564.74
Step by Step Solution
- Step 1: Write the proportion equation
112,307.16 : 154,979.76 = 62,005.08 : x - Step 2: Convert to fraction form
112,307.16/154,979.76 = 62,005.08/x - Step 3: Cross multiply
112,307.16x = 154,979.76 × 62,005.08 - Step 4: Simplify right side
112,307.16x = 9,609,532,417.18 - Step 5: Solve for x
x = 9,609,532,417.18/112,307.16 - Step 6: Final answer
x = 85,564.74
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1.5x scale
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.