Home / 142,430.60-213,364.30-124,920.20

Finding the Fourth Proportional to 142,430.60, 213,364.30 and 124,920.20

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Solution

The fourth proportional to 142,430.60, 213,364.30 and 124,920.20 is: 187,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,430.60 : 213,364.30 = 124,920.20 : x
  2. Step 2: Convert to fraction form
    142,430.60/213,364.30 = 124,920.20/x
  3. Step 3: Cross multiply
    142,430.60x = 213,364.30 × 124,920.20
  4. Step 4: Simplify right side
    142,430.60x = 26,653,511,028.86
  5. Step 5: Solve for x
    x = 26,653,511,028.86/142,430.60
  6. Step 6: Final answer
    x = 187,133.32

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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.