Finding the Fourth Proportional to 145,862.68, 218,830.96 and 40,681.68
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Solution
The fourth proportional to 145,862.68, 218,830.96 and 40,681.68 is: 61,032.82
Step by Step Solution
- Step 1: Write the proportion equation
145,862.68 : 218,830.96 = 40,681.68 : x - Step 2: Convert to fraction form
145,862.68/218,830.96 = 40,681.68/x - Step 3: Cross multiply
145,862.68x = 218,830.96 × 40,681.68 - Step 4: Simplify right side
145,862.68x = 8,902,411,088.81 - Step 5: Solve for x
x = 8,902,411,088.81/145,862.68 - Step 6: Final answer
x = 61,032.82
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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.