Home / 141,419.10-212,073.05-51,440.45

Finding the Fourth Proportional to 141,419.10, 212,073.05 and 51,440.45

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Solution

The fourth proportional to 141,419.10, 212,073.05 and 51,440.45 is: 77,140.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,419.10 : 212,073.05 = 51,440.45 : x
  2. Step 2: Convert to fraction form
    141,419.10/212,073.05 = 51,440.45/x
  3. Step 3: Cross multiply
    141,419.10x = 212,073.05 × 51,440.45
  4. Step 4: Simplify right side
    141,419.10x = 10,909,132,064.51
  5. Step 5: Solve for x
    x = 10,909,132,064.51/141,419.10
  6. Step 6: Final answer
    x = 77,140.45

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1.5x scale

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.