Home / 142,435.10-213,371.05-124,924.70

Finding the Fourth Proportional to 142,435.10, 213,371.05 and 124,924.70

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Solution

The fourth proportional to 142,435.10, 213,371.05 and 124,924.70 is: 187,140.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,435.10 : 213,371.05 = 124,924.70 : x
  2. Step 2: Convert to fraction form
    142,435.10/213,371.05 = 124,924.70/x
  3. Step 3: Cross multiply
    142,435.10x = 213,371.05 × 124,924.70
  4. Step 4: Simplify right side
    142,435.10x = 26,655,314,409.94
  5. Step 5: Solve for x
    x = 26,655,314,409.94/142,435.10
  6. Step 6: Final answer
    x = 187,140.07

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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.