Home / 145,964.40-218,946.60-83,756.40

Finding the Fourth Proportional to 145,964.40, 218,946.60 and 83,756.40

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Solution

The fourth proportional to 145,964.40, 218,946.60 and 83,756.40 is: 125,634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,964.40 : 218,946.60 = 83,756.40 : x
  2. Step 2: Convert to fraction form
    145,964.40/218,946.60 = 83,756.40/x
  3. Step 3: Cross multiply
    145,964.40x = 218,946.60 × 83,756.40
  4. Step 4: Simplify right side
    145,964.40x = 18,338,179,008.24
  5. Step 5: Solve for x
    x = 18,338,179,008.24/145,964.40
  6. Step 6: Final answer
    x = 125,634.60

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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.