Home / 142,430.10-213,645.15-92,238.45

Finding the Fourth Proportional to 142,430.10, 213,645.15 and 92,238.45

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Solution

The fourth proportional to 142,430.10, 213,645.15 and 92,238.45 is: 138,357.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,430.10 : 213,645.15 = 92,238.45 : x
  2. Step 2: Convert to fraction form
    142,430.10/213,645.15 = 92,238.45/x
  3. Step 3: Cross multiply
    142,430.10x = 213,645.15 × 92,238.45
  4. Step 4: Simplify right side
    142,430.10x = 19,706,297,486.02
  5. Step 5: Solve for x
    x = 19,706,297,486.02/142,430.10
  6. Step 6: Final answer
    x = 138,357.68

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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.