Home / 142,358.31-213,534.77-42,518.79

Finding the Fourth Proportional to 142,358.31, 213,534.77 and 42,518.79

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Solution

The fourth proportional to 142,358.31, 213,534.77 and 42,518.79 is: 63,777.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,358.31 : 213,534.77 = 42,518.79 : x
  2. Step 2: Convert to fraction form
    142,358.31/213,534.77 = 42,518.79/x
  3. Step 3: Cross multiply
    142,358.31x = 213,534.77 × 42,518.79
  4. Step 4: Simplify right side
    142,358.31x = 9,079,239,830.73
  5. Step 5: Solve for x
    x = 9,079,239,830.73/142,358.31
  6. Step 6: Final answer
    x = 63,777.38

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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.