Home / 210,079.04-315,258.60-108,970.28

Finding the Fourth Proportional to 210,079.04, 315,258.60 and 108,970.28

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Solution

The fourth proportional to 210,079.04, 315,258.60 and 108,970.28 is: 163,528.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,079.04 : 315,258.60 = 108,970.28 : x
  2. Step 2: Convert to fraction form
    210,079.04/315,258.60 = 108,970.28/x
  3. Step 3: Cross multiply
    210,079.04x = 315,258.60 × 108,970.28
  4. Step 4: Simplify right side
    210,079.04x = 34,353,817,914.41
  5. Step 5: Solve for x
    x = 34,353,817,914.41/210,079.04
  6. Step 6: Final answer
    x = 163,528.06

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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.