Home / 111,621.60-167,432.40-64,927.20

Finding the Fourth Proportional to 111,621.60, 167,432.40 and 64,927.20

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Solution

The fourth proportional to 111,621.60, 167,432.40 and 64,927.20 is: 97,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,621.60 : 167,432.40 = 64,927.20 : x
  2. Step 2: Convert to fraction form
    111,621.60/167,432.40 = 64,927.20/x
  3. Step 3: Cross multiply
    111,621.60x = 167,432.40 × 64,927.20
  4. Step 4: Simplify right side
    111,621.60x = 10,870,916,921.28
  5. Step 5: Solve for x
    x = 10,870,916,921.28/111,621.60
  6. Step 6: Final answer
    x = 97,390.80

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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.