Home / 147,713.60-221,570.40-76,854.80

Finding the Fourth Proportional to 147,713.60, 221,570.40 and 76,854.80

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Solution

The fourth proportional to 147,713.60, 221,570.40 and 76,854.80 is: 115,282.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,713.60 : 221,570.40 = 76,854.80 : x
  2. Step 2: Convert to fraction form
    147,713.60/221,570.40 = 76,854.80/x
  3. Step 3: Cross multiply
    147,713.60x = 221,570.40 × 76,854.80
  4. Step 4: Simplify right side
    147,713.60x = 17,028,748,777.92
  5. Step 5: Solve for x
    x = 17,028,748,777.92/147,713.60
  6. Step 6: Final answer
    x = 115,282.20

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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.