Home / 109,904.60-164,856.90-70,538.60

Finding the Fourth Proportional to 109,904.60, 164,856.90 and 70,538.60

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Solution

The fourth proportional to 109,904.60, 164,856.90 and 70,538.60 is: 105,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,904.60 : 164,856.90 = 70,538.60 : x
  2. Step 2: Convert to fraction form
    109,904.60/164,856.90 = 70,538.60/x
  3. Step 3: Cross multiply
    109,904.60x = 164,856.90 × 70,538.60
  4. Step 4: Simplify right side
    109,904.60x = 11,628,774,926.34
  5. Step 5: Solve for x
    x = 11,628,774,926.34/109,904.60
  6. Step 6: Final answer
    x = 105,807.90

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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.