Home / 115,538.60-159,415.95-67,111.76

Finding the Fourth Proportional to 115,538.60, 159,415.95 and 67,111.76

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Solution

The fourth proportional to 115,538.60, 159,415.95 and 67,111.76 is: 92,598.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,538.60 : 159,415.95 = 67,111.76 : x
  2. Step 2: Convert to fraction form
    115,538.60/159,415.95 = 67,111.76/x
  3. Step 3: Cross multiply
    115,538.60x = 159,415.95 × 67,111.76
  4. Step 4: Simplify right side
    115,538.60x = 10,698,684,179.49
  5. Step 5: Solve for x
    x = 10,698,684,179.49/115,538.60
  6. Step 6: Final answer
    x = 92,598.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.