Finding the Fourth Proportional to 132,263.18, 182,417.65 and 86,987.65
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Solution
The fourth proportional to 132,263.18, 182,417.65 and 86,987.65 is: 119,973.55
Step by Step Solution
- Step 1: Write the proportion equation
132,263.18 : 182,417.65 = 86,987.65 : x - Step 2: Convert to fraction form
132,263.18/182,417.65 = 86,987.65/x - Step 3: Cross multiply
132,263.18x = 182,417.65 × 86,987.65 - Step 4: Simplify right side
132,263.18x = 15,868,082,692.02 - Step 5: Solve for x
x = 15,868,082,692.02/132,263.18 - Step 6: Final answer
x = 119,973.55
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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.