Home / 153,014.10-229,521.15-128,519.70

Finding the Fourth Proportional to 153,014.10, 229,521.15 and 128,519.70

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Solution

The fourth proportional to 153,014.10, 229,521.15 and 128,519.70 is: 192,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,014.10 : 229,521.15 = 128,519.70 : x
  2. Step 2: Convert to fraction form
    153,014.10/229,521.15 = 128,519.70/x
  3. Step 3: Cross multiply
    153,014.10x = 229,521.15 × 128,519.70
  4. Step 4: Simplify right side
    153,014.10x = 29,497,989,341.66
  5. Step 5: Solve for x
    x = 29,497,989,341.66/153,014.10
  6. Step 6: Final answer
    x = 192,779.55

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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.