Home / 142,038.89-213,058.64-57,739.56

Finding the Fourth Proportional to 142,038.89, 213,058.64 and 57,739.56

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Solution

The fourth proportional to 142,038.89, 213,058.64 and 57,739.56 is: 86,609.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,038.89 : 213,058.64 = 57,739.56 : x
  2. Step 2: Convert to fraction form
    142,038.89/213,058.64 = 57,739.56/x
  3. Step 3: Cross multiply
    142,038.89x = 213,058.64 × 57,739.56
  4. Step 4: Simplify right side
    142,038.89x = 12,301,912,127.80
  5. Step 5: Solve for x
    x = 12,301,912,127.80/142,038.89
  6. Step 6: Final answer
    x = 86,609.46

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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.