Home / 141,750.64-212,519.05-85,577.40

Finding the Fourth Proportional to 141,750.64, 212,519.05 and 85,577.40

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Solution

The fourth proportional to 141,750.64, 212,519.05 and 85,577.40 is: 128,301.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,750.64 : 212,519.05 = 85,577.40 : x
  2. Step 2: Convert to fraction form
    141,750.64/212,519.05 = 85,577.40/x
  3. Step 3: Cross multiply
    141,750.64x = 212,519.05 × 85,577.40
  4. Step 4: Simplify right side
    141,750.64x = 18,186,828,614.61
  5. Step 5: Solve for x
    x = 18,186,828,614.61/141,750.64
  6. Step 6: Final answer
    x = 128,301.57

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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.