Home / 147,714.20-221,312.10-121,275.80

Finding the Fourth Proportional to 147,714.20, 221,312.10 and 121,275.80

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Solution

The fourth proportional to 147,714.20, 221,312.10 and 121,275.80 is: 181,700.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,714.20 : 221,312.10 = 121,275.80 : x
  2. Step 2: Convert to fraction form
    147,714.20/221,312.10 = 121,275.80/x
  3. Step 3: Cross multiply
    147,714.20x = 221,312.10 × 121,275.80
  4. Step 4: Simplify right side
    147,714.20x = 26,839,801,977.18
  5. Step 5: Solve for x
    x = 26,839,801,977.18/147,714.20
  6. Step 6: Final answer
    x = 181,700.89

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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.