Home / 109,304.32-164,036.40-69,957.76

Finding the Fourth Proportional to 109,304.32, 164,036.40 and 69,957.76

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Solution

The fourth proportional to 109,304.32, 164,036.40 and 69,957.76 is: 104,987.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,304.32 : 164,036.40 = 69,957.76 : x
  2. Step 2: Convert to fraction form
    109,304.32/164,036.40 = 69,957.76/x
  3. Step 3: Cross multiply
    109,304.32x = 164,036.40 × 69,957.76
  4. Step 4: Simplify right side
    109,304.32x = 11,475,619,102.46
  5. Step 5: Solve for x
    x = 11,475,619,102.46/109,304.32
  6. Step 6: Final answer
    x = 104,987.79

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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.