Finding the Fourth Proportional to 101,656.18, 140,281.71 and 56,332.99
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Solution
The fourth proportional to 101,656.18, 140,281.71 and 56,332.99 is: 77,737.41
Step by Step Solution
- Step 1: Write the proportion equation
101,656.18 : 140,281.71 = 56,332.99 : x - Step 2: Convert to fraction form
101,656.18/140,281.71 = 56,332.99/x - Step 3: Cross multiply
101,656.18x = 140,281.71 × 56,332.99 - Step 4: Simplify right side
101,656.18x = 7,902,488,166.61 - Step 5: Solve for x
x = 7,902,488,166.61/101,656.18 - Step 6: Final answer
x = 77,737.41
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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.