Home / 145,883.20-218,824.80-83,502.40

Finding the Fourth Proportional to 145,883.20, 218,824.80 and 83,502.40

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Solution

The fourth proportional to 145,883.20, 218,824.80 and 83,502.40 is: 125,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,883.20 : 218,824.80 = 83,502.40 : x
  2. Step 2: Convert to fraction form
    145,883.20/218,824.80 = 83,502.40/x
  3. Step 3: Cross multiply
    145,883.20x = 218,824.80 × 83,502.40
  4. Step 4: Simplify right side
    145,883.20x = 18,272,395,979.52
  5. Step 5: Solve for x
    x = 18,272,395,979.52/145,883.20
  6. Step 6: Final answer
    x = 125,253.60

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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.