Finding the Fourth Proportional to 114,958,068.70, 172,437,103.05 and 103,620,660.70
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Solution
The fourth proportional to 114,958,068.70, 172,437,103.05 and 103,620,660.70 is: 155,430,991.05
Step by Step Solution
- Step 1: Write the proportion equation
114,958,068.70 : 172,437,103.05 = 103,620,660.70 : x - Step 2: Convert to fraction form
114,958,068.70/172,437,103.05 = 103,620,660.70/x - Step 3: Cross multiply
114,958,068.70x = 172,437,103.05 × 103,620,660.70 - Step 4: Simplify right side
114,958,068.70x = 17,868,046,547,234,986 - Step 5: Solve for x
x = 17,868,046,547,234,986/114,958,068.70 - Step 6: Final answer
x = 155,430,991.05
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1.5x scale
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.