Home / 190,923.20-286,276.80-72,598.40

Finding the Fourth Proportional to 190,923.20, 286,276.80 and 72,598.40

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Solution

The fourth proportional to 190,923.20, 286,276.80 and 72,598.40 is: 108,856.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,923.20 : 286,276.80 = 72,598.40 : x
  2. Step 2: Convert to fraction form
    190,923.20/286,276.80 = 72,598.40/x
  3. Step 3: Cross multiply
    190,923.20x = 286,276.80 × 72,598.40
  4. Step 4: Simplify right side
    190,923.20x = 20,783,237,637.12
  5. Step 5: Solve for x
    x = 20,783,237,637.12/190,923.20
  6. Step 6: Final answer
    x = 108,856.53

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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.