Home / 113,139.40-169,698.73-38,260.20

Finding the Fourth Proportional to 113,139.40, 169,698.73 and 38,260.20

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Solution

The fourth proportional to 113,139.40, 169,698.73 and 38,260.20 is: 57,386.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,139.40 : 169,698.73 = 38,260.20 : x
  2. Step 2: Convert to fraction form
    113,139.40/169,698.73 = 38,260.20/x
  3. Step 3: Cross multiply
    113,139.40x = 169,698.73 × 38,260.20
  4. Step 4: Simplify right side
    113,139.40x = 6,492,707,349.55
  5. Step 5: Solve for x
    x = 6,492,707,349.55/113,139.40
  6. Step 6: Final answer
    x = 57,386.79

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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.