Home / 90,801.02-125,234.49-77,416.58

Finding the Fourth Proportional to 90,801.02, 125,234.49 and 77,416.58

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Solution

The fourth proportional to 90,801.02, 125,234.49 and 77,416.58 is: 106,774.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,801.02 : 125,234.49 = 77,416.58 : x
  2. Step 2: Convert to fraction form
    90,801.02/125,234.49 = 77,416.58/x
  3. Step 3: Cross multiply
    90,801.02x = 125,234.49 × 77,416.58
  4. Step 4: Simplify right side
    90,801.02x = 9,695,225,913.84
  5. Step 5: Solve for x
    x = 9,695,225,913.84/90,801.02
  6. Step 6: Final answer
    x = 106,774.42

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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.