Home / 163,947.20-245,920.80-155,393.60

Finding the Fourth Proportional to 163,947.20, 245,920.80 and 155,393.60

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Solution

The fourth proportional to 163,947.20, 245,920.80 and 155,393.60 is: 233,090.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,947.20 : 245,920.80 = 155,393.60 : x
  2. Step 2: Convert to fraction form
    163,947.20/245,920.80 = 155,393.60/x
  3. Step 3: Cross multiply
    163,947.20x = 245,920.80 × 155,393.60
  4. Step 4: Simplify right side
    163,947.20x = 38,214,518,426.88
  5. Step 5: Solve for x
    x = 38,214,518,426.88/163,947.20
  6. Step 6: Final answer
    x = 233,090.40

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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.