Home / 145,200.60-217,509.30-82,798.20

Finding the Fourth Proportional to 145,200.60, 217,509.30 and 82,798.20

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Solution

The fourth proportional to 145,200.60, 217,509.30 and 82,798.20 is: 124,031.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,200.60 : 217,509.30 = 82,798.20 : x
  2. Step 2: Convert to fraction form
    145,200.60/217,509.30 = 82,798.20/x
  3. Step 3: Cross multiply
    145,200.60x = 217,509.30 × 82,798.20
  4. Step 4: Simplify right side
    145,200.60x = 18,009,378,523.26
  5. Step 5: Solve for x
    x = 18,009,378,523.26/145,200.60
  6. Step 6: Final answer
    x = 124,031.02

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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.