Home / 155,856.20-233,784.30-72,912.20

Finding the Fourth Proportional to 155,856.20, 233,784.30 and 72,912.20

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Solution

The fourth proportional to 155,856.20, 233,784.30 and 72,912.20 is: 109,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,856.20 : 233,784.30 = 72,912.20 : x
  2. Step 2: Convert to fraction form
    155,856.20/233,784.30 = 72,912.20/x
  3. Step 3: Cross multiply
    155,856.20x = 233,784.30 × 72,912.20
  4. Step 4: Simplify right side
    155,856.20x = 17,045,727,638.46
  5. Step 5: Solve for x
    x = 17,045,727,638.46/155,856.20
  6. Step 6: Final answer
    x = 109,368.30

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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.