Home / 147,759.40-221,639.10-145,426.60

Finding the Fourth Proportional to 147,759.40, 221,639.10 and 145,426.60

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Solution

The fourth proportional to 147,759.40, 221,639.10 and 145,426.60 is: 218,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,759.40 : 221,639.10 = 145,426.60 : x
  2. Step 2: Convert to fraction form
    147,759.40/221,639.10 = 145,426.60/x
  3. Step 3: Cross multiply
    147,759.40x = 221,639.10 × 145,426.60
  4. Step 4: Simplify right side
    147,759.40x = 32,232,220,740.06
  5. Step 5: Solve for x
    x = 32,232,220,740.06/147,759.40
  6. Step 6: Final answer
    x = 218,139.90

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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.