Finding the Fourth Proportional to 112,666.68, 155,490.84 and 62,365.68
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Solution
The fourth proportional to 112,666.68, 155,490.84 and 62,365.68 is: 86,070.63
Step by Step Solution
- Step 1: Write the proportion equation
112,666.68 : 155,490.84 = 62,365.68 : x - Step 2: Convert to fraction form
112,666.68/155,490.84 = 62,365.68/x - Step 3: Cross multiply
112,666.68x = 155,490.84 × 62,365.68 - Step 4: Simplify right side
112,666.68x = 9,697,291,970.37 - Step 5: Solve for x
x = 9,697,291,970.37/112,666.68 - Step 6: Final answer
x = 86,070.63
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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.