Finding the Fourth Proportional to 101,395.08, 139,925.52 and 56,683.08
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Solution
The fourth proportional to 101,395.08, 139,925.52 and 56,683.08 is: 78,222.82
Step by Step Solution
- Step 1: Write the proportion equation
101,395.08 : 139,925.52 = 56,683.08 : x - Step 2: Convert to fraction form
101,395.08/139,925.52 = 56,683.08/x - Step 3: Cross multiply
101,395.08x = 139,925.52 × 56,683.08 - Step 4: Simplify right side
101,395.08x = 7,931,409,444.20 - Step 5: Solve for x
x = 7,931,409,444.20/101,395.08 - Step 6: Final answer
x = 78,222.82
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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.