Finding the Fourth Proportional to 156,953.70, 235,430.55 and 83,225.70
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Solution
The fourth proportional to 156,953.70, 235,430.55 and 83,225.70 is: 124,838.55
Step by Step Solution
- Step 1: Write the proportion equation
156,953.70 : 235,430.55 = 83,225.70 : x - Step 2: Convert to fraction form
156,953.70/235,430.55 = 83,225.70/x - Step 3: Cross multiply
156,953.70x = 235,430.55 × 83,225.70 - Step 4: Simplify right side
156,953.70x = 19,593,872,325.14 - Step 5: Solve for x
x = 19,593,872,325.14/156,953.70 - Step 6: Final answer
x = 124,838.55
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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.