Finding the Fourth Proportional to 130,534.84, 180,134.58 and 76,823.02
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Solution
The fourth proportional to 130,534.84, 180,134.58 and 76,823.02 is: 106,013.71
Step by Step Solution
- Step 1: Write the proportion equation
130,534.84 : 180,134.58 = 76,823.02 : x - Step 2: Convert to fraction form
130,534.84/180,134.58 = 76,823.02/x - Step 3: Cross multiply
130,534.84x = 180,134.58 × 76,823.02 - Step 4: Simplify right side
130,534.84x = 13,838,482,442.03 - Step 5: Solve for x
x = 13,838,482,442.03/130,534.84 - Step 6: Final answer
x = 106,013.71
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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.