Home / 140,693.32-194,149.02-77,018.80

Finding the Fourth Proportional to 140,693.32, 194,149.02 and 77,018.80

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Solution

The fourth proportional to 140,693.32, 194,149.02 and 77,018.80 is: 106,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,693.32 : 194,149.02 = 77,018.80 : x
  2. Step 2: Convert to fraction form
    140,693.32/194,149.02 = 77,018.80/x
  3. Step 3: Cross multiply
    140,693.32x = 194,149.02 × 77,018.80
  4. Step 4: Simplify right side
    140,693.32x = 14,953,124,541.58
  5. Step 5: Solve for x
    x = 14,953,124,541.58/140,693.32
  6. Step 6: Final answer
    x = 106,281.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.