Home / 141,465.19-212,194.70-66,543.81

Finding the Fourth Proportional to 141,465.19, 212,194.70 and 66,543.81

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Solution

The fourth proportional to 141,465.19, 212,194.70 and 66,543.81 is: 99,814.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,465.19 : 212,194.70 = 66,543.81 : x
  2. Step 2: Convert to fraction form
    141,465.19/212,194.70 = 66,543.81/x
  3. Step 3: Cross multiply
    141,465.19x = 212,194.70 × 66,543.81
  4. Step 4: Simplify right side
    141,465.19x = 14,120,242,738.83
  5. Step 5: Solve for x
    x = 14,120,242,738.83/141,465.19
  6. Step 6: Final answer
    x = 99,814.26

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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.