Home / 145,983.60-218,975.40-144,601.20

Finding the Fourth Proportional to 145,983.60, 218,975.40 and 144,601.20

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Solution

The fourth proportional to 145,983.60, 218,975.40 and 144,601.20 is: 216,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,983.60 : 218,975.40 = 144,601.20 : x
  2. Step 2: Convert to fraction form
    145,983.60/218,975.40 = 144,601.20/x
  3. Step 3: Cross multiply
    145,983.60x = 218,975.40 × 144,601.20
  4. Step 4: Simplify right side
    145,983.60x = 31,664,105,610.48
  5. Step 5: Solve for x
    x = 31,664,105,610.48/145,983.60
  6. Step 6: Final answer
    x = 216,901.80

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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.