Finding the Fourth Proportional to 125,298.70, 172,901.50 and 70,848.19
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Solution
The fourth proportional to 125,298.70, 172,901.50 and 70,848.19 is: 97,764.45
Step by Step Solution
- Step 1: Write the proportion equation
125,298.70 : 172,901.50 = 70,848.19 : x - Step 2: Convert to fraction form
125,298.70/172,901.50 = 70,848.19/x - Step 3: Cross multiply
125,298.70x = 172,901.50 × 70,848.19 - Step 4: Simplify right side
125,298.70x = 12,249,758,323.29 - Step 5: Solve for x
x = 12,249,758,323.29/125,298.70 - Step 6: Final answer
x = 97,764.45
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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.