Finding the Fourth Proportional to 166,412.68, 249,681.35 and 86,400.70
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Solution
The fourth proportional to 166,412.68, 249,681.35 and 86,400.70 is: 129,633.41
Step by Step Solution
- Step 1: Write the proportion equation
166,412.68 : 249,681.35 = 86,400.70 : x - Step 2: Convert to fraction form
166,412.68/249,681.35 = 86,400.70/x - Step 3: Cross multiply
166,412.68x = 249,681.35 × 86,400.70 - Step 4: Simplify right side
166,412.68x = 21,572,643,008.74 - Step 5: Solve for x
x = 21,572,643,008.74/166,412.68 - Step 6: Final answer
x = 129,633.41
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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.